diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/Resolvable.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/Resolvable.java
index 5e837a2..ab3462f 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/Resolvable.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/Resolvable.java
@@ -26,7 +26,7 @@
      * Returns the status of resolution. If completely resolved returns enum
      * value "RESOLVED", if not returns "UNRESOLVED", in case reference of
      * grouping/typedef is added to uses/type but it's not resolved
-     * "PARTIALLY_RESOLVED" is returned.
+     * "INTRA_FILE_RESOLVED" is returned.
      *
      * @return status of resolution
      */
@@ -36,7 +36,7 @@
      * Set the status of type/uses resolution. If completely resolved set enum
      * value "RESOLVED", if not set it to "UNRESOLVED", in case reference of
      * grouping/typedef is added to uses/type but it's not resolved
-     * "PARTIALLY_RESOLVED" should be set.
+     * "INTRA_FILE_RESOLVED" should be set.
      *
      * @param resolvableStatus status of resolution
      */
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/ResolvableStatus.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/ResolvableStatus.java
index 71b4e20..2514441 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/ResolvableStatus.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/ResolvableStatus.java
@@ -22,17 +22,24 @@
 public enum ResolvableStatus {
 
     /**
-    * Identifies that resolvable entity is resolved.
-    */
-    RESOLVED,
-
-    /**
      * Identifies that resolvable entity is unresolved.
      */
     UNRESOLVED,
 
     /**
-     * Identifies that resolvable entity is partially resolved.
+     * Identifies that resolvable entity's reference is linked.
      */
-    PARTIALLY_RESOLVED;
+    LINKED,
+
+    /**
+     * Identifies that resolvable entity is IntraFile resolved (i.e. complete
+     * linking with in the intra file).
+     */
+    INTRA_FILE_RESOLVED,
+
+    /**
+     * Identifies that resolvable entity is resolved.
+     */
+    RESOLVED;
+
 }
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangAugment.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangAugment.java
index 374e2ab..adac640 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangAugment.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangAugment.java
@@ -75,6 +75,7 @@
  *                | when         | 7.19.5  | 0..1        |-TODO             |
  *                +--------------+---------+-------------+------------------+
  */
+
 /**
  * Representation of data model node to maintain information defined in YANG augment.
  */
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangEntityToResolveInfo.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangEntityToResolveInfo.java
new file mode 100644
index 0000000..7e3d819
--- /dev/null
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangEntityToResolveInfo.java
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.yangutils.datamodel;
+
+import org.onosproject.yangutils.datamodel.exceptions.DataModelException;
+
+/**
+ * Represents information about entity being resolved.
+ */
+public class YangEntityToResolveInfo<T> {
+
+    // Parsable node for which resolution is to be performed.
+    private T entityToResolve;
+
+    // Holder of the YANG construct for which resolution has to be carried out.
+    private YangNode holderOfEntityToResolve;
+
+    /**
+     * Retrieves the entity to be resolved.
+     *
+     * @return entity to be resolved
+     */
+    public T getEntityToResolve() {
+        return entityToResolve;
+    }
+
+    /**
+     * Sets entity to be resolved.
+     *
+     * @param entityToResolve entity to be resolved
+     */
+    public void setEntityToResolve(T entityToResolve) {
+        this.entityToResolve = entityToResolve;
+    }
+
+    /**
+     * Retrieves the parent node which contains the entity to be resolved.
+     *
+     * @return parent node which contains the entity to be resolved
+     */
+    public YangNode getHolderOfEntityToResolve() {
+        return holderOfEntityToResolve;
+    }
+
+    /**
+     * Sets parent node which contains the entity to be resolved.
+     *
+     * @param holderOfEntityToResolve parent node which contains the entity to be resolved
+     */
+    public void setHolderOfEntityToResolve(YangNode holderOfEntityToResolve) {
+        this.holderOfEntityToResolve = holderOfEntityToResolve;
+    }
+
+
+    public String getEntityPrefix()
+            throws DataModelException {
+        if (getEntityToResolve() == null) {
+            return null;
+        }
+
+        String prefix;
+        T entityToResolve = (T) getEntityToResolve();
+        if (entityToResolve instanceof YangType) {
+            prefix = ((YangType<?>) entityToResolve).getPrefix();
+        } else if (entityToResolve instanceof YangUses) {
+            prefix = ((YangUses) entityToResolve).getPrefix();
+        } else {
+            throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses");
+        }
+        return prefix;
+    }
+}
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangImport.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangImport.java
index b079d3f..4ab3f2a 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangImport.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangImport.java
@@ -59,10 +59,12 @@
  *                | revision-date | 7.1.5.1 | 0..1        | string           |
  *                +---------------+---------+-------------+------------------+
  */
+
 /**
  * Represents the information about the imported modules.
  */
-public class YangImport implements Parsable {
+public class YangImport
+        implements Parsable {
 
     /**
      * Name of the module that is being imported.
@@ -75,11 +77,6 @@
     private String prefixId;
 
     /**
-     * Resolution information root node which is also the data model root node.
-     */
-    private HasResolutionInfo resolutionInfoNode;
-
-    /**
      * Reference:RFC 6020.
      *
      * The import's "revision-date" statement is used to specify the exact
@@ -118,7 +115,7 @@
      * Returns the prefix used to identify the entities from the imported module.
      *
      * @return the prefix used to identify the entities from the imported
-     *         module
+     * module
      */
     public String getPrefixId() {
         return prefixId;
@@ -167,7 +164,8 @@
      * @throws DataModelException a violation of data model rules
      */
     @Override
-    public void validateDataOnEntry() throws DataModelException {
+    public void validateDataOnEntry()
+            throws DataModelException {
         // TODO auto-generated method stub, to be implemented by parser
 
     }
@@ -178,26 +176,9 @@
      * @throws DataModelException a violation of data model rules
      */
     @Override
-    public void validateDataOnExit() throws DataModelException {
+    public void validateDataOnExit()
+            throws DataModelException {
         // TODO auto-generated method stub, to be implemented by parser
 
     }
-
-    /**
-     * Returns the resolution information node.
-     *
-     * @return the resolution information node
-     */
-    public HasResolutionInfo getResolutionInfoNode() {
-        return resolutionInfoNode;
-    }
-
-    /**
-     * Sets the dresolution information node.
-     *
-     * @param resolutionInfoNode the resolution information node
-     */
-    public void setResolutionInfoNode(HasResolutionInfo resolutionInfoNode) {
-        this.resolutionInfoNode = resolutionInfoNode;
-    }
 }
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangInclude.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangInclude.java
index 9010368..4892613 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangInclude.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangInclude.java
@@ -33,10 +33,12 @@
  *                | revision-date | 7.1.5.1 | 0..1        | string           |
  *                +---------------+---------+-------------+------------------+
  */
+
 /**
  * Represents the information about the included sub-modules.
  */
-public class YangInclude implements Parsable {
+public class YangInclude
+        implements Parsable {
 
     /**
      * Name of the sub-module that is being included.
@@ -50,11 +52,6 @@
     private String revision;
 
     /**
-     * Resolution information root node which is also the data model root node.
-     */
-    private HasResolutionInfo resolutionInfoNode;
-
-    /**
      * Creates a YANG include.
      */
     public YangInclude() {
@@ -112,7 +109,8 @@
      * @throws DataModelException a violation of data model rules
      */
     @Override
-    public void validateDataOnEntry() throws DataModelException {
+    public void validateDataOnEntry()
+            throws DataModelException {
         // TODO auto-generated method stub, to be implemented by parser
 
     }
@@ -123,26 +121,10 @@
      * @throws DataModelException a violation of data model rules
      */
     @Override
-    public void validateDataOnExit() throws DataModelException {
+    public void validateDataOnExit()
+            throws DataModelException {
         // TODO auto-generated method stub, to be implemented by parser
 
     }
 
-    /**
-     * Returns the resolution information node.
-     *
-     * @return the resolution information node
-     */
-    public HasResolutionInfo getResolutionInfoNode() {
-        return resolutionInfoNode;
-    }
-
-    /**
-     * Sets the dresolution information node.
-     *
-     * @param resolutionInfoNode the resolution information node
-     */
-    public void setResolutionInfoNode(HasResolutionInfo resolutionInfoNode) {
-        this.resolutionInfoNode = resolutionInfoNode;
-    }
 }
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangResolutionInfo.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangResolutionInfo.java
index b6c2f7c..c9c0064 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangResolutionInfo.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangResolutionInfo.java
@@ -20,19 +20,22 @@
 
 import org.onosproject.yangutils.datamodel.exceptions.DataModelException;
 
+import static org.onosproject.yangutils.datamodel.ResolvableStatus.INTRA_FILE_RESOLVED;
+import static org.onosproject.yangutils.datamodel.ResolvableStatus.LINKED;
+import static org.onosproject.yangutils.datamodel.ResolvableStatus.RESOLVED;
+import static org.onosproject.yangutils.datamodel.ResolvableStatus.UNRESOLVED;
+
 /**
  * Represents resolution object which will be resolved by linker.
+ *
+ * @param <T> type of resolution entity uses / type
  */
 public class YangResolutionInfo<T> {
 
-    // Prefix associated with the linking.
-    private String prefix;
-
-    // Parsable node for which resolution is to be performed.
-    private T entityToResolve;
-
-    // Holder of the YANG construct for which resolution has to be carried out.
-    private YangNode holderOfEntityToResolve;
+    /**
+     * Information about the entity that needs to be resolved.
+     */
+    private YangEntityToResolveInfo<T> entityToResolveInfo;
 
     // Error Line number.
     private int lineNumber;
@@ -40,24 +43,20 @@
     // Error character position.
     private int charPosition;
 
-    // Status of resolution.
-    private boolean isResolved;
-
     /*
      * Stack for type/uses is maintained for hierarchical references, this is
      * used during resolution.
      */
-    private Stack<T> partialResolvedStack;
-
-    // Flag to indicate whether more references are detected.
-    private boolean isMoreReferenceDetected;
+    private Stack<YangEntityToResolveInfo<T>> partialResolvedStack;
 
     // Module/Sub-module prefix.
     private String resolutionInfoRootNodePrefix;
 
     /**
-     * Create a resolution information object.
+     * It is private to ensure the overloaded method be invoked to create an
+     * object.
      */
+    @SuppressWarnings("unused")
     private YangResolutionInfo() {
 
     }
@@ -66,293 +65,268 @@
      * Creates a resolution information object with all the inputs.
      *
      * @param dataNode current parsable data node
-     * @param resolutionType type of resolution whether grouping/typedef
-     * @param holderNode parent YANG node
-     * @param prefix imported module prefix
-     * @param lineNumber error line number
-     * @param charPositionInLine error character position in line
-     */
-    public YangResolutionInfo(T dataNode, ResolutionType resolutionType,
-            YangNode holderNode, String prefix, int lineNumber,
-            int charPositionInLine) {
-        this.setHolderOfEntityToResolve(holderNode);
-        this.setEntityToResolve(dataNode);
-        this.setPrefix(prefix);
-        this.setLineNumber(lineNumber);
-        this.setCharPosition(charPositionInLine);
-        setPartialResolvedStack(new Stack<T>());
-    }
-
-    /**
-     * Creates a resolution information object with all the inputs except prefix.
-     *
-     * @param dataNode current parsable data node
-     * @param resolutionType type of resolution whether grouping/typedef
      * @param holderNode parent YANG node
      * @param lineNumber error line number
      * @param charPositionInLine error character position in line
      */
-    public YangResolutionInfo(T dataNode, ResolutionType resolutionType,
-            YangNode holderNode, int lineNumber,
-            int charPositionInLine) {
-        this.setHolderOfEntityToResolve(holderNode);
-        this.setEntityToResolve(dataNode);
+    public YangResolutionInfo(T dataNode, YangNode holderNode, int lineNumber, int charPositionInLine) {
+        setEntityToResolveInfo(new YangEntityToResolveInfo<T>());
+        getEntityToResolveInfo().setEntityToResolve(dataNode);
+        getEntityToResolveInfo().setHolderOfEntityToResolve(holderNode);
         this.setLineNumber(lineNumber);
         this.setCharPosition(charPositionInLine);
+        setPartialResolvedStack(new Stack<YangEntityToResolveInfo<T>>());
     }
 
     /**
      * Resolve linking with all the ancestors node for a resolution info.
      *
      * @param resolutionInfoNodePrefix module/sub-module prefix
-     * @throws DataModelException DataModelException a violation of data model rules
+     * @throws DataModelException DataModelException a violation of data model
+     *                            rules
      */
-    public void resolveLinkingForResolutionInfo(String resolutionInfoNodePrefix) throws DataModelException {
+    public void resolveLinkingForResolutionInfo(String resolutionInfoNodePrefix)
+            throws DataModelException {
 
         this.resolutionInfoRootNodePrefix = resolutionInfoNodePrefix;
 
         // Current node to resolve, it can be a YANG type or YANG uses.
-        T entityToResolve = getEntityToResolve();
+        T entityToResolve = getEntityToResolveInfo().getEntityToResolve();
 
         // Check if linking is already done
         if (entityToResolve instanceof Resolvable) {
             Resolvable resolvable = (Resolvable) entityToResolve;
-            if (resolvable.getResolvableStatus() == ResolvableStatus.RESOLVED ||
-                    resolvable.getResolvableStatus() == ResolvableStatus.PARTIALLY_RESOLVED) {
+            if (resolvable.getResolvableStatus() == RESOLVED) {
+                /**
+                 * entity is already resolved, so nothing to do
+                 */
                 return;
             }
         } else {
             throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses");
         }
 
-        // Push the initial YANG type to the stack.
-        getPartialResolvedStack().push(entityToResolve);
+        // Push the initial entity to resolve in stack.
+        addInPartialResolvedStack(getEntityToResolveInfo());
 
-        // Get holder of entity to resolve
-        YangNode curNode = getHolderOfEntityToResolve();
-
-        resolveLinkingWithAncestors(curNode);
+        linkAndResolvePartialResolvedStack();
     }
 
     /**
      * Resolves linking with ancestors.
      *
-     * @param curNode current node for which ancestors to be checked
      * @throws DataModelException a violation of data model rules
      */
-    private void resolveLinkingWithAncestors(YangNode curNode) throws DataModelException {
+    private void linkAndResolvePartialResolvedStack()
+            throws DataModelException {
 
-        while (curNode != null) {
-            YangNode node = curNode.getChild();
-            if (resolveLinkingForNodesChildAndSibling(node, curNode)) {
-                return;
+        while (getPartialResolvedStack().size() != 0) {
+
+            // Current node to resolve, it can be a YANG type or YANG uses.
+            T entityToResolve = getCurrentEntityToResolveFromStack();
+            // Check if linking is already done
+            if (entityToResolve instanceof Resolvable) {
+
+                Resolvable resolvable = (Resolvable) entityToResolve;
+                switch (resolvable.getResolvableStatus()) {
+                    case RESOLVED: {
+                        /*
+                         * If the entity is already resolved in the stack, then
+                         * pop it and continue with the remaining stack elements
+                         * to resolve
+                         */
+                        getPartialResolvedStack().pop();
+                        break;
+                    }
+
+                    case LINKED: {
+                        /*
+                         * If the top of the stack is already linked then
+                         * resolve the references and pop the entity and
+                         * continue with remaining stack elements to resolve
+                         */
+                        resolveTopOfStack();
+                        getPartialResolvedStack().pop();
+                        break;
+                    }
+
+                    case INTRA_FILE_RESOLVED: {
+                        /*
+                         * TODO: this needs to be deleted, when inter-file
+                         * resolution is implmeneted
+                         */
+                        getPartialResolvedStack().pop();
+                        break;
+                    }
+
+                    case UNRESOLVED: {
+                        linkTopOfStackReferenceUpdateStack();
+
+                        if (resolvable.getResolvableStatus() == UNRESOLVED) {
+                            // If current entity is still not resolved, then linking/resolution has failed.
+                            DataModelException dataModelException =
+                                    new DataModelException("YANG file error: Unable to find base "
+                                            + "typedef/grouping for given type/uses");
+                            dataModelException.setLine(getLineNumber());
+                            dataModelException.setCharPosition(getCharPosition());
+                            throw dataModelException;
+                        }
+                        break;
+                    }
+                    default: {
+                        throw new DataModelException("Data Model Exception: Unsupported, linker state");
+                    }
+
+                }
+
+            } else {
+                throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses");
             }
-            curNode = curNode.getParent();
+
         }
 
-        // If curNode is null, it indicates an error condition in YANG file.
-        DataModelException dataModelException = new DataModelException("YANG file error: Unable to find base " +
-                "typedef/grouping for given type/uses");
-        dataModelException.setLine(getLineNumber());
-        dataModelException.setCharPosition(getCharPosition());
-        throw dataModelException;
+    }
+
+    /**
+     * Resolve the current entity in the stack.
+     */
+    private void resolveTopOfStack() {
+        ((Resolvable) getCurrentEntityToResolveFromStack()).resolve();
+
+        if (((Resolvable) getCurrentEntityToResolveFromStack()).getResolvableStatus()
+                != INTRA_FILE_RESOLVED) {
+            // Sets the resolution status in inside the type/uses.
+            ((Resolvable) getCurrentEntityToResolveFromStack()).setResolvableStatus(RESOLVED);
+        }
     }
 
     /**
      * Resolves linking for a node child and siblings.
      *
-     * @param node current node
-     * @param parentNode parent node of current node
-     * @return flag to indicate whether resolution is done
-     * @throws DataModelException
+     * @throws DataModelException data model error
      */
-    private boolean resolveLinkingForNodesChildAndSibling(YangNode node, YangNode parentNode)
+    private void linkTopOfStackReferenceUpdateStack()
             throws DataModelException {
-        while ((node != null)) {
-            isMoreReferenceDetected = false;
-            // Check if node is of type, typedef or grouping
-            if (isNodeOfResolveType(node)) {
-                if (resolveLinkingForNode(node, parentNode)) {
-                    return true;
-                }
-            }
-            if (isMoreReferenceDetected) {
-                /*
-                 * If more reference are present, tree traversal must start from
-                 * first child again, to check the availability of
-                 * typedef/grouping.
-                 */
-                node = parentNode.getChild();
-            } else {
-                node = node.getNextSibling();
-            }
+
+        if (!isSelfFileReference()) {
+            /*
+             * TODO: use mojo utilities to load the referred module/sub-module
+             * and get the reference to the corresponding referred entity
+             */
+
+            ((Resolvable) getCurrentEntityToResolveFromStack()).setResolvableStatus(INTRA_FILE_RESOLVED);
+            return;
         }
-        return false;
-    }
 
-    /**
-     * Resolves linking for a node.
-     *
-     * @param node current node
-     * @param parentNode parent node of current node
-     * @return flag to indicate whether resolution is done
-     * @throws DataModelException a violation of data model rules
-     */
-    private boolean resolveLinkingForNode(YangNode node, YangNode parentNode) throws DataModelException {
-
-        /*
-         * Check if name of node name matches with the entity name under
-         * resolution.
+        /**
+         * Try to resolve the top of the stack and update partial resolved stack
+         * if there is recursive references
          */
-        if (isNodeNameSameAsResolutionInfoName(node)) {
-            // Adds reference of entity to the node under resolution.
-            addReferredEntityLink(node);
-            // Check if referred entity has further reference to uses/type.
-            if (!(isMoreReferencePresent(node))) {
-                // Resolve all the entities in stack.
-                resolveStackAndAddToStack(node);
-                return true;
-            } else {
-                // Adds referred type/uses to the stack.
-                addToPartialResolvedStack(node);
-                /*
-                 * Check whether referred type is resolved, partially resolved
-                 * or unresolved.
+        YangNode potentialAncestorWithReferredNode = getPartialResolvedStack().peek()
+                .getHolderOfEntityToResolve();
+
+        /**
+         * Traverse up in the ancestor tree to check if the referred node is
+         * defined
+         */
+        while (potentialAncestorWithReferredNode != null) {
+
+            /**
+             * Check for the referred node defined in a ancestor scope
+             */
+            YangNode potentialReferredNode = potentialAncestorWithReferredNode.getChild();
+            if (isReferredNodeInSiblingListProcessed(potentialReferredNode)) {
+                return;
+            }
+
+            potentialAncestorWithReferredNode = potentialAncestorWithReferredNode.getParent();
+        }
+    }
+
+    /**
+     * Check if the reference in self file or in external file.
+     *
+     * @return true if self file reference, false otherwise
+     * @throws DataModelException a violation of data model rules
+     */
+    private boolean isSelfFileReference()
+            throws DataModelException {
+        String prefix;
+        if (getCurrentEntityToResolveFromStack() instanceof YangType) {
+            prefix = ((YangType<?>) getCurrentEntityToResolveFromStack()).getPrefix();
+        } else if (getCurrentEntityToResolveFromStack() instanceof YangUses) {
+            prefix = ((YangUses) getCurrentEntityToResolveFromStack()).getPrefix();
+        } else {
+            throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses");
+        }
+
+        if (prefix == null) {
+            return true;
+        }
+        return prefix.contentEquals(resolutionInfoRootNodePrefix);
+
+    }
+
+    /**
+     * Check for the referred node defined in a ancestor scope.
+     *
+     * @param potentialReferredNode potential referred node
+     * @return status of resolution and updating the partial resolved stack with
+     * the any recursive references
+     * @throws DataModelException data model errors
+     */
+    private boolean isReferredNodeInSiblingListProcessed(YangNode potentialReferredNode)
+            throws DataModelException {
+        while (potentialReferredNode != null) {
+
+            // Check if the potential referred node is the actual referred node
+            if (isReferredNode(potentialReferredNode)) {
+
+                // Adds reference link of entity to the node under resolution.
+                addReferredEntityLink(potentialReferredNode);
+
+                /**
+                 * resolve the reference and update the partial resolution stack
+                 * with any further recursive references
                  */
-                if (isReferenceFullyResolved()) {
-                    // Resolve the stack which is complete.
-                    resolveCompleteStack();
-                    return true;
-                } else if (isReferencePartiallyResolved()) {
-                    /*
-                     * Update the resolution type to partially resolved for all
-                     * type/uses in stack
-                     */
-                    updateResolutionTypeToPartial();
-                    return true;
-                } else {
-                    /*
-                     * Check if prefix is present to find that the derived
-                     * reference is for intra file or inter file, if it's
-                     * inter-file return and stop further processing.
-                     */
-                    if (isExternalPrefixPresent(node)) {
-                        /*
-                         * Update the resolution type to partially resolved for
-                         * all type/uses in stack
-                         */
-                        updateResolutionTypeToPartial();
-                        return true;
-                    } else {
-                        /*
-                         * If prefix is not present it indicates intra-file
-                         * dependency in this case set the node back to first
-                         * child, as referred entity may appear in any order and
-                         * continue with the resolution.
-                         */
-                        isMoreReferenceDetected = true;
-                        return false;
-                    }
-                }
+                addUnresolvedRecursiveReferenceToStack(potentialReferredNode);
+
+                /*
+                 * return true, since the reference is linked and any recursive
+                 * unresolved references is added to the stack
+                 */
+                return true;
             }
+
+            potentialReferredNode = potentialReferredNode.getNextSibling();
         }
         return false;
     }
 
     /**
-     * Update resolution type to partial for all type/uses in stack.
+     * Check if the potential referred node is the actual referred node.
      *
-     * @throws DataModelException a violation of data model rules
-     */
-    private void updateResolutionTypeToPartial() throws DataModelException {
-        // For all entries in stack calls for the resolution in type/uses.
-        for (T entity : getPartialResolvedStack()) {
-            if (!(entity instanceof Resolvable)) {
-                throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses");
-            }
-            if (((Resolvable) entity).getResolvableStatus() == ResolvableStatus.UNRESOLVED) {
-                // Sets the resolution status in inside the type/uses.
-                ((Resolvable) entity).setResolvableStatus(ResolvableStatus.PARTIALLY_RESOLVED);
-            }
-        }
-    }
-
-    /**
-     * Adds referred type/uses to the stack and resolve the stack.
-     *
-     * @param node typedef/grouping node
-     * @throws DataModelException a violation of data model rules
-     */
-    private void resolveStackAndAddToStack(YangNode node) throws DataModelException {
-        if (getEntityToResolve() instanceof YangType) {
-            // Adds to the stack only for YANG typedef.
-            getPartialResolvedStack().push((T) ((YangTypeDef) node).getDataType());
-        }
-        // Don't add to stack in case of YANG grouping.
-
-        // Resolve the complete stack.
-        resolveCompleteStack();
-    }
-
-    /**
-     * Check if the referred type/uses is partially resolved.
-     *
-     * @return true if reference is partially resolved, otherwise false
-     */
-    private boolean isReferencePartiallyResolved() {
-        if (getPartialResolvedStack().peek() instanceof YangType) {
-            /*
-             * Checks if type is partially resolved.
-             */
-            if (((YangType) getPartialResolvedStack().peek())
-                    .getResolvableStatus() == ResolvableStatus.PARTIALLY_RESOLVED) {
-                return true;
-            }
-        } else if (getPartialResolvedStack().peek() instanceof YangUses) {
-            if (((YangUses) getPartialResolvedStack().peek())
-                    .getResolvableStatus() == ResolvableStatus.PARTIALLY_RESOLVED) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    /**
-     * Check if the referred type/uses is resolved.
-     *
-     * @return true if reference is resolved, otherwise false
-     */
-    private boolean isReferenceFullyResolved() {
-        if (getPartialResolvedStack().peek() instanceof YangType) {
-            /*
-             * Checks if type is partially resolved.
-             */
-            if (((YangType) getPartialResolvedStack().peek()).getResolvableStatus() == ResolvableStatus.RESOLVED) {
-                return true;
-            }
-        } else if (getPartialResolvedStack().peek() instanceof YangUses) {
-            if (((YangUses) getPartialResolvedStack().peek()).getResolvableStatus() == ResolvableStatus.RESOLVED) {
-                return true;
-            }
-        }
-        return false;
-    }
-
-    /**
-     * Check if node is of resolve type i.e. of type typedef or grouping.
-     *
-     * @param node typedef/grouping node
+     * @param potentialReferredNode typedef/grouping node
      * @return true if node is of resolve type otherwise false
      * @throws DataModelException a violation of data model rules
      */
-    private boolean isNodeOfResolveType(YangNode node) throws DataModelException {
-        if (getPartialResolvedStack().peek() instanceof YangType && entityToResolve instanceof YangType) {
-            if (node instanceof YangTypeDef) {
-                return true;
+    private boolean isReferredNode(YangNode potentialReferredNode)
+            throws DataModelException {
+        if (getCurrentEntityToResolveFromStack() instanceof YangType) {
+            if (potentialReferredNode instanceof YangTypeDef) {
+                /*
+                 * Check if name of node name matches with the entity being
+                 * resolved
+                 */
+                return isNodeNameSameAsResolutionInfoName(potentialReferredNode);
             }
-        } else if (getPartialResolvedStack().peek() instanceof YangUses && entityToResolve instanceof YangUses) {
-            if (node instanceof YangGrouping) {
-                return true;
+        } else if (getCurrentEntityToResolveFromStack() instanceof YangUses) {
+            if (potentialReferredNode instanceof YangGrouping) {
+                /*
+                 * Check if name of node name matches with the entity being
+                 * resolved
+                 */
+                return isNodeNameSameAsResolutionInfoName(potentialReferredNode);
             }
         } else {
             throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses");
@@ -369,13 +343,18 @@
      * false
      * @throws DataModelException a violation of data model rules
      */
-    private boolean isNodeNameSameAsResolutionInfoName(YangNode node) throws DataModelException {
-        if (getPartialResolvedStack().peek() instanceof YangType) {
-            if (node.getName().equals(((YangType<?>) getPartialResolvedStack().peek()).getDataTypeName())) {
+
+    private boolean isNodeNameSameAsResolutionInfoName(YangNode node)
+            throws DataModelException {
+        if (getCurrentEntityToResolveFromStack() instanceof YangType) {
+            if (node.getName().contentEquals(
+                    ((YangType<?>) getCurrentEntityToResolveFromStack())
+                            .getDataTypeName())) {
                 return true;
             }
-        } else if (getPartialResolvedStack().peek() instanceof YangUses) {
-            if (node.getName().equals(((YangUses) getPartialResolvedStack().peek()).getName())) {
+        } else if (getCurrentEntityToResolveFromStack() instanceof YangUses) {
+            if (node.getName().contentEquals(
+                    ((YangUses) getCurrentEntityToResolveFromStack()).getName())) {
                 return true;
             }
         } else {
@@ -387,181 +366,91 @@
     /**
      * Adds reference of grouping/typedef in uses/type.
      *
-     * @param node grouping/typedef node
+     * @param referredNode grouping/typedef node being referred
      * @throws DataModelException a violation of data model rules
      */
-    private void addReferredEntityLink(YangNode node) throws DataModelException {
-        if (getPartialResolvedStack().peek() instanceof YangType) {
-            YangDerivedInfo<?> derivedInfo = (YangDerivedInfo<?>) ((YangType<?>) getPartialResolvedStack().peek())
-                    .getDataTypeExtendedInfo();
-            derivedInfo.setReferredTypeDef((YangTypeDef) node);
-        } else if (getPartialResolvedStack().peek() instanceof YangUses) {
-            ((YangUses) getPartialResolvedStack().peek()).setRefGroup((YangGrouping) node);
+    private void addReferredEntityLink(YangNode referredNode)
+            throws DataModelException {
+        if (getCurrentEntityToResolveFromStack() instanceof YangType) {
+            YangDerivedInfo<?> derivedInfo = (YangDerivedInfo<?>)
+                    ((YangType<?>) getCurrentEntityToResolveFromStack()).getDataTypeExtendedInfo();
+            derivedInfo.setReferredTypeDef((YangTypeDef) referredNode);
+        } else if (getCurrentEntityToResolveFromStack() instanceof YangUses) {
+            ((YangUses) getCurrentEntityToResolveFromStack())
+                    .setRefGroup((YangGrouping) referredNode);
+        } else {
+            throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses");
+        }
+
+        // Sets the resolution status in inside the type/uses.
+        ((Resolvable) getCurrentEntityToResolveFromStack()).setResolvableStatus(LINKED);
+    }
+
+    /**
+     * Checks if type/grouping has further reference to typedef/ unresolved
+     * uses. Add it to the partial resolve stack and return the status of
+     * addition to stack.
+     *
+     * @param referredNode grouping/typedef node
+     * @throws DataModelException a violation of data model rules
+     */
+    private void addUnresolvedRecursiveReferenceToStack(YangNode referredNode)
+            throws DataModelException {
+        if (getCurrentEntityToResolveFromStack() instanceof YangType) {
+            /*
+             * Checks if typedef type is derived
+             */
+            if (((YangTypeDef) referredNode).getTypeDefBaseType().getDataType()
+                    == YangDataTypes.DERIVED) {
+
+                YangEntityToResolveInfo<YangType<?>> unResolvedEntityInfo = new YangEntityToResolveInfo<YangType<?>>();
+                unResolvedEntityInfo.setEntityToResolve(((YangTypeDef) referredNode)
+                        .getTypeDefBaseType());
+                unResolvedEntityInfo.setHolderOfEntityToResolve(referredNode);
+                addInPartialResolvedStack((YangEntityToResolveInfo<T>) unResolvedEntityInfo);
+            }
+
+        } else if (getCurrentEntityToResolveFromStack() instanceof YangUses) {
+            /*
+             * Search if the grouping has any un resolved uses child, if so
+             * return true, else return false.
+             */
+            addUnResolvedUsesToStack(referredNode);
         } else {
             throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses");
         }
     }
 
     /**
-     * Checks if typedef/grouping has further reference to type/typedef.
+     * Return if there is any unresolved uses in grouping.
      *
      * @param node grouping/typedef node
-     * @return true if referred entity is resolved, otherwise false
-     * @throws DataModelException a violation of data model rules
      */
-    private boolean isMoreReferencePresent(YangNode node) throws DataModelException {
-        if (getEntityToResolve() instanceof YangType) {
-            /*
-             * Checks if typedef type is built-in type
-             */
-            if ((((YangTypeDef) node).getDataType().getDataType() != YangDataTypes.DERIVED)) {
-                return false;
-            }
-        } else if (getEntityToResolve() instanceof YangUses) {
-            /*
-             * Search if the grouping has any uses child, if so return false,
-             * else return true.
-             */
-            if (getUsesInGrouping(node) == null) {
-                return false;
-            }
-        } else {
-            throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses");
-        }
-        return true;
-    }
+    private void addUnResolvedUsesToStack(YangNode node) {
 
-    /**
-     * Return if there is any uses in grouping.
-     *
-     * @param node grouping/typedef node
-     * @return if there is any uses in grouping, otherwise return null
-     */
-    private YangUses getUsesInGrouping(YangNode node) {
-        YangNode curNode = ((YangGrouping) node).getChild();
+        /**
+         * Search the grouping node's children for presence of uses node.
+         */
+        YangNode curNode = node.getChild();
         while (curNode != null) {
             if (curNode instanceof YangUses) {
-                break;
+                ResolvableStatus curResolveStatus = ((Resolvable) curNode).getResolvableStatus();
+                if (curResolveStatus == UNRESOLVED) {
+                    /**
+                     * The current uses is not resolved, add it to partial
+                     * resolved stack
+                     */
+                    YangEntityToResolveInfo<YangUses> unResolvedEntityInfo = new YangEntityToResolveInfo<YangUses>();
+                    unResolvedEntityInfo.setEntityToResolve((YangUses) curNode);
+                    unResolvedEntityInfo.setHolderOfEntityToResolve(node);
+                    addInPartialResolvedStack((YangEntityToResolveInfo<T>) unResolvedEntityInfo);
+
+                }
             }
             curNode = curNode.getNextSibling();
         }
-        return (YangUses) curNode;
-    }
 
-    /**
-     * Resolve the complete stack.
-     *
-     * @throws DataModelException a violation of data model rules
-     */
-    private void resolveCompleteStack() throws DataModelException {
-        // For all entries in stack calls for the resolution in type/uses.
-        for (T entity : getPartialResolvedStack()) {
-            if (!(entity instanceof Resolvable)) {
-                throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses");
-            }
-            ((Resolvable) entity).resolve();
-            // Sets the resolution status in inside the type/uses.
-            ((Resolvable) entity).setResolvableStatus(ResolvableStatus.RESOLVED);
-        }
-        /*
-         * Sets the resolution status in resolution info present in resolution
-         * list.
-         */
-        setIsResolved(true);
-    }
-
-    /**
-     * Adds to partial resolved stack.
-     *
-     * @param node grouping/typedef node
-     * @throws DataModelException a violation of data model rules
-     */
-    private void addToPartialResolvedStack(YangNode node) throws DataModelException {
-        if (getPartialResolvedStack().peek() instanceof YangType) {
-            // Adds to the stack only for YANG typedef.
-            getPartialResolvedStack().push((T) ((YangTypeDef) node).getDataType());
-        } else if (getPartialResolvedStack().peek() instanceof YangUses) {
-            getPartialResolvedStack().push((T) getUsesInGrouping(node));
-        } else {
-            throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses");
-        }
-    }
-
-    /**
-     * Check if prefix is associated with type/uses.
-     *
-     * @param node typedef/grouping node
-     * @return true if prefix is present, otherwise false
-     * @throws DataModelException a violation of data model rules
-     */
-    private boolean isExternalPrefixPresent(YangNode node) throws DataModelException {
-        if (getEntityToResolve() instanceof YangType) {
-            if (((YangTypeDef) node).getDataType().getPrefix() != null &&
-                    (!((YangTypeDef) node).getDataType().getPrefix().equals(resolutionInfoRootNodePrefix))) {
-                return true;
-            }
-        } else if (getEntityToResolve() instanceof YangUses) {
-            if (getUsesInGrouping(node).getPrefix() != null) {
-                return true;
-            }
-        } else {
-            throw new DataModelException("Data Model Exception: Entity to resolved is other than type/uses");
-        }
-        return false;
-    }
-
-    /**
-     * Returns prefix of imported module.
-     *
-     * @return prefix of imported module
-     */
-    public String getPrefix() {
-        return prefix;
-    }
-
-    /**
-     * Sets prefix of imported module.
-     *
-     * @param prefix of imported module
-     */
-    public void setPrefix(String prefix) {
-        this.prefix = prefix;
-    }
-
-    /**
-     * Returns parsable entity which is to be resolved.
-     *
-     * @return parsable entity which is to be resolved
-     */
-    public T getEntityToResolve() {
-        return entityToResolve;
-    }
-
-    /**
-     * Sets parsable entity to be resolved.
-     *
-     * @param entityToResolve YANG entity to be resolved
-     */
-    public void setEntityToResolve(T entityToResolve) {
-        this.entityToResolve = entityToResolve;
-    }
-
-    /**
-     * Returns parent YANG node holder for the entity to be resolved.
-     *
-     * @return parent YANG node holder
-     */
-    public YangNode getHolderOfEntityToResolve() {
-        return holderOfEntityToResolve;
-    }
-
-    /**
-     * Sets parent YANG node holder for the entity to be resolved.
-     *
-     * @param holderOfEntityToResolve parent YANG node holder
-     */
-    public void setHolderOfEntityToResolve(YangNode holderOfEntityToResolve) {
-        this.holderOfEntityToResolve = holderOfEntityToResolve;
+        return;
     }
 
     /**
@@ -601,29 +490,12 @@
     }
 
     /**
-     * Returns status of resolution.
-     *
-     * @return resolution status
-     */
-    public boolean isResolved() {
-        return isResolved;
-    }
-
-    /**
-     * Sets status of resolution.
-     *
-     * @param isResolved resolution status
-     */
-    public void setIsResolved(boolean isResolved) {
-        this.isResolved = isResolved;
-    }
-
-    /**
-     * Returns stack of YANG type with partially resolved YANG construct hierarchy.
+     * Returns stack of YANG type with partially resolved YANG construct
+     * hierarchy.
      *
      * @return partial resolved YANG construct stack
      */
-    public Stack<T> getPartialResolvedStack() {
+    private Stack<YangEntityToResolveInfo<T>> getPartialResolvedStack() {
         return partialResolvedStack;
     }
 
@@ -632,7 +504,45 @@
      *
      * @param partialResolvedStack partial resolved YANG construct stack
      */
-    public void setPartialResolvedStack(Stack<T> partialResolvedStack) {
+    private void setPartialResolvedStack(Stack<YangEntityToResolveInfo<T>> partialResolvedStack) {
         this.partialResolvedStack = partialResolvedStack;
     }
+
+    /**
+     * Sets stack of YANG type with partially resolved YANG construct hierarchy.
+     *
+     * @param partialResolvedInfo partial resolved YANG construct stack
+     */
+    private void addInPartialResolvedStack(YangEntityToResolveInfo<T> partialResolvedInfo) {
+        getPartialResolvedStack().push(partialResolvedInfo);
+    }
+
+    /**
+     * Retrieves the next entity in the stack that needs to be resolved. It is
+     * assumed that the caller ensures that the stack is not empty.
+     *
+     * @return next entity in the stack that needs to be resolved
+     */
+    private T getCurrentEntityToResolveFromStack() {
+        return getPartialResolvedStack().peek().getEntityToResolve();
+    }
+
+    /**
+     * Retrieves information about the entity that needs to be resolved.
+     *
+     * @return information about the entity that needs to be resolved
+     */
+    public YangEntityToResolveInfo<T> getEntityToResolveInfo() {
+        return entityToResolveInfo;
+    }
+
+    /**
+     * Sets information about the entity that needs to be resolved.
+     *
+     * @param entityToResolveInfo information about the entity that needs to be
+     * resolved
+     */
+    public void setEntityToResolveInfo(YangEntityToResolveInfo<T> entityToResolveInfo) {
+        this.entityToResolveInfo = entityToResolveInfo;
+    }
 }
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangRpc.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangRpc.java
index 15a6626..ce8b632 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangRpc.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangRpc.java
@@ -104,9 +104,9 @@
 
     @Override
     public void detectSelfCollision(String identifierName, YangConstructType dataType) throws DataModelException {
-        if (this.getName().equals(identifierName)) {
+        if (getName().equals(identifierName)) {
             throw new DataModelException("YANG file error: Duplicate input identifier detected, same as rpc \""
-                    + this.getName() + "\"");
+                    + getName() + "\"");
         }
     }
 
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangType.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangType.java
index 37d8a05..5b18fac 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangType.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangType.java
@@ -20,6 +20,8 @@
 import org.onosproject.yangutils.parser.Parsable;
 import org.onosproject.yangutils.utils.YangConstructType;
 
+import static org.onosproject.yangutils.datamodel.ResolvableStatus.INTRA_FILE_RESOLVED;
+
 /*
  * Reference:RFC 6020.
  * The "type" statement takes as an argument a string that is the name
@@ -49,7 +51,8 @@
  *
  * @param <T> YANG data type info
  */
-public class YangType<T> implements Parsable, Resolvable {
+public class YangType<T>
+        implements Parsable, Resolvable {
 
     /**
      * YANG node identifier.
@@ -89,7 +92,7 @@
      * Status of resolution. If completely resolved enum value is "RESOLVED",
      * if not enum value is "UNRESOLVED", in case reference of grouping/typedef
      * is added to uses/type but it's not resolved value of enum should be
-     * "PARTIALLY_RESOLVED".
+     * "INTRA_FILE_RESOLVED".
      */
     private ResolvableStatus resolvableStatus;
 
@@ -262,7 +265,8 @@
      * @throws DataModelException a violation of data model rules
      */
     @Override
-    public void validateDataOnEntry() throws DataModelException {
+    public void validateDataOnEntry()
+            throws DataModelException {
         // TODO auto-generated method stub, to be implemented by parser
 
     }
@@ -273,7 +277,8 @@
      * @throws DataModelException a violation of data model rules
      */
     @Override
-    public void validateDataOnExit() throws DataModelException {
+    public void validateDataOnExit()
+            throws DataModelException {
         // TODO auto-generated method stub, to be implemented by parser
 
     }
@@ -290,6 +295,20 @@
 
     @Override
     public void resolve() {
-        //TODO: implement the method.
+       /*
+       Inherit the Restriction from the referred typedef definition.
+        */
+        if (getDataType() != YangDataTypes.DERIVED) {
+            throw new RuntimeException("Resolve should only be called for derrived data types");
+        }
+
+        YangDerivedInfo<?> derrivedInfo = (YangDerivedInfo<?>) getDataTypeExtendedInfo();
+        YangType<?> baseType = derrivedInfo.getReferredTypeDef().getTypeDefBaseType();
+        if (YangDataTypes.DERIVED == baseType.getDataType()) {
+            if (baseType.getResolvableStatus() == INTRA_FILE_RESOLVED) {
+                setResolvableStatus(INTRA_FILE_RESOLVED);
+            }
+        }
+        //TODO:
     }
 }
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangTypeDef.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangTypeDef.java
index 7b0204c..35998d4 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangTypeDef.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangTypeDef.java
@@ -179,7 +179,7 @@
      *
      * @return the data type
      */
-    public YangType<?> getDataType() {
+    public YangType<?> getTypeDefBaseType() {
         return dataType;
     }
 
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangUnion.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangUnion.java
index 21aabc0..c75068c 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangUnion.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangUnion.java
@@ -16,13 +16,13 @@
 
 package org.onosproject.yangutils.datamodel;
 
+import java.util.LinkedList;
+import java.util.List;
+
 import org.onosproject.yangutils.datamodel.exceptions.DataModelException;
 import org.onosproject.yangutils.parser.Parsable;
 import org.onosproject.yangutils.utils.YangConstructType;
 
-import java.util.LinkedList;
-import java.util.List;
-
 /*
  * Reference RFC 6020.
  *
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangUses.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangUses.java
index c4025b6..22b9700 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangUses.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/YangUses.java
@@ -48,10 +48,13 @@
  *                | when         | 7.19.5  | 0..1        | -TODO            |
  *                +--------------+---------+-------------+------------------+
  */
+
 /**
  * Represents data model node to maintain information defined in YANG uses.
  */
-public class YangUses extends YangNode implements YangCommonInfo, Parsable, Resolvable {
+public class YangUses
+        extends YangNode
+        implements YangCommonInfo, Parsable, Resolvable {
 
     /**
      * YANG node identifier.
@@ -82,7 +85,7 @@
      * Status of resolution. If completely resolved enum value is "RESOLVED",
      * if not enum value is "UNRESOLVED", in case reference of grouping/typedef
      * is added to uses/type but it's not resolved value of enum should be
-     * "PARTIALLY_RESOLVED".
+     * "INTRA_FILE_RESOLVED".
      */
     private ResolvableStatus resolvableStatus;
 
@@ -189,7 +192,8 @@
      * @throws DataModelException a violation of data model rules
      */
     @Override
-    public void validateDataOnEntry() throws DataModelException {
+    public void validateDataOnEntry()
+            throws DataModelException {
         // TODO auto-generated method stub, to be implemented by parser
     }
 
@@ -199,7 +203,8 @@
      * @throws DataModelException a violation of data model rules
      */
     @Override
-    public void validateDataOnExit() throws DataModelException {
+    public void validateDataOnExit()
+            throws DataModelException {
         // TODO auto-generated method stub, to be implemented by parser
     }
 
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/utils/DataModelUtils.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/utils/DataModelUtils.java
index 76e8f36..643eda5 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/utils/DataModelUtils.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/utils/DataModelUtils.java
@@ -20,6 +20,7 @@
 
 import org.onosproject.yangutils.datamodel.CollisionDetector;
 import org.onosproject.yangutils.datamodel.HasResolutionInfo;
+import org.onosproject.yangutils.datamodel.YangImport;
 import org.onosproject.yangutils.datamodel.YangLeaf;
 import org.onosproject.yangutils.datamodel.YangLeafList;
 import org.onosproject.yangutils.datamodel.YangLeavesHolder;
@@ -28,6 +29,7 @@
 import org.onosproject.yangutils.datamodel.exceptions.DataModelException;
 import org.onosproject.yangutils.utils.YangConstructType;
 
+
 /**
  * Represents utilities for data model tree.
  */
@@ -43,7 +45,7 @@
      * Detects the colliding identifier name in a given YANG node and its child.
      *
      * @param identifierName name for which collision detection is to be
-     *            checked
+     * checked
      * @param dataType type of YANG node asking for detecting collision
      * @param node instance of calling node
      * @throws DataModelException a violation of data model rules
@@ -77,7 +79,7 @@
      *
      * @param leavesHolder leaves node against which collision to be checked
      * @param identifierName name for which collision detection is to be
-     *            checked
+     * checked
      * @throws DataModelException a violation of data model rules
      */
     private static void detectCollidingLeaf(YangLeavesHolder leavesHolder, String identifierName)
@@ -96,7 +98,7 @@
      *
      * @param leavesHolder leaves node against which collision to be checked
      * @param identifierName name for which collision detection is to be
-     *            checked
+     * checked
      * @throws DataModelException a violation of data model rules
      */
     private static void detectCollidingLeafList(YangLeavesHolder leavesHolder, String identifierName)
@@ -114,13 +116,17 @@
      * Add a resolution information.
      *
      * @param resolutionInfo information about the YANG construct which has to
-     *                       be resolved
+     * be resolved
      * @throws DataModelException a violation of data model rules
      */
-    public static void addResolutionInfo(YangResolutionInfo resolutionInfo) throws DataModelException {
+    public static void addResolutionInfo(YangResolutionInfo resolutionInfo)
+            throws DataModelException {
+
+
 
         /* get the module node to add maintain the list of nested reference */
-        YangNode curNode = resolutionInfo.getHolderOfEntityToResolve();
+        YangNode curNode = resolutionInfo.getEntityToResolveInfo()
+                .getHolderOfEntityToResolve();
         while (!(curNode instanceof HasResolutionInfo)) {
             curNode = curNode.getParent();
             if (curNode == null) {
@@ -128,25 +134,58 @@
             }
         }
         HasResolutionInfo resolutionNode = (HasResolutionInfo) curNode;
+
+        if (!isPrefixValid(resolutionInfo.getEntityToResolveInfo().getEntityPrefix(),
+                resolutionNode)) {
+            throw new DataModelException("The prefix used is not valid");
+        }
         resolutionNode.addToResolutionList(resolutionInfo);
     }
 
+    private static boolean isPrefixValid(String entityPrefix, HasResolutionInfo resolutionNode) {
+        if (entityPrefix == null) {
+            return true;
+        }
+
+        if (resolutionNode.getPrefix().contentEquals(entityPrefix)) {
+            return true;
+        }
+
+        if (resolutionNode.getImportList() != null) {
+            for (YangImport importedInfo : resolutionNode.getImportList()) {
+                if (importedInfo.getPrefixId().contentEquals(entityPrefix)) {
+                    return true;
+                }
+            }
+        }
+
+        if (resolutionNode.getIncludeList() != null) {
+            /**
+             * TODO: check if the prefix matches with the imported data
+
+             for (YangInclude includedInfo : resolutionNode.getIncludeList()) {
+             if (includedInfo.contentEquals(prefix)) {
+             return true;
+             }
+             }*/
+        }
+
+        return false;
+    }
+
     /**
      * Resolve linking for a resolution list.
      *
      * @param resolutionList resolution list for which linking to be done
-     * @param resolutionInfoNode module/sub-module node
+     * @param dataModelRootNode module/sub-module node
      * @throws DataModelException a violation of data model rules
      */
     public static void resolveLinkingForResolutionList(List<YangResolutionInfo> resolutionList,
-            HasResolutionInfo resolutionInfoNode)
+            HasResolutionInfo dataModelRootNode)
             throws DataModelException {
 
         for (YangResolutionInfo resolutionInfo : resolutionList) {
-            if (resolutionInfo.getPrefix() == null ||
-                    resolutionInfo.getPrefix().equals(resolutionInfoNode.getPrefix())) {
-                resolutionInfo.resolveLinkingForResolutionInfo(resolutionInfoNode.getPrefix());
-            }
+            resolutionInfo.resolveLinkingForResolutionInfo(dataModelRootNode.getPrefix());
         }
     }
 }
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/utils/YangDataModelFactory.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/utils/YangDataModelFactory.java
index 6edd6a6..03d82d1 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/utils/YangDataModelFactory.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/datamodel/utils/YangDataModelFactory.java
@@ -20,6 +20,7 @@
 import org.onosproject.yangutils.datamodel.YangChoice;
 import org.onosproject.yangutils.datamodel.YangContainer;
 import org.onosproject.yangutils.datamodel.YangGrouping;
+import org.onosproject.yangutils.datamodel.YangLeaf;
 import org.onosproject.yangutils.datamodel.YangList;
 import org.onosproject.yangutils.datamodel.YangModule;
 import org.onosproject.yangutils.datamodel.YangSubModule;
@@ -34,6 +35,7 @@
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaChoice;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaContainer;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaGrouping;
+import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaLeaf;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaList;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaModule;
 import org.onosproject.yangutils.translator.tojava.javamodel.YangJavaSubModule;
@@ -51,7 +53,7 @@
 public final class YangDataModelFactory {
 
     /**
-     * Creates a YANG data model factory object.
+     * Utility class, hence private to prevent creating objects.
      */
     private YangDataModelFactory() {
     }
@@ -261,6 +263,23 @@
      *            generated
      * @return the corresponding inherited node based on the target language
      */
+    public static YangLeaf getYangLeaf(GeneratedLanguage targetLanguage) {
+        switch (targetLanguage) {
+            case JAVA_GENERATION: {
+                return new YangJavaLeaf();
+            }
+            default: {
+                throw new RuntimeException("Only YANG to Java is supported.");
+            }
+        }
+    }
+    /**
+     * Returns based on the target language generate the inherited data model node.
+     *
+     * @param targetLanguage target language in which YANG mapping needs to be
+     *            generated
+     * @return the corresponding inherited node based on the target language
+     */
     public static YangRpc getYangRpcNode(GeneratedLanguage targetLanguage) {
         switch (targetLanguage) {
             case JAVA_GENERATION: {
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/DescriptionListener.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/DescriptionListener.java
index 32bd3aa..eddfa56 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/DescriptionListener.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/DescriptionListener.java
@@ -40,8 +40,9 @@
  */
 
 /**
- * Represents listener based call back function corresponding to the "description"
- * rule defined in ANTLR grammar file for corresponding ABNF rule in RFC 6020.
+ * Represents listener based call back function corresponding to the
+ * "description" rule defined in ANTLR grammar file for corresponding ABNF rule
+ * in RFC 6020.
  */
 public final class DescriptionListener {
 
@@ -52,15 +53,14 @@
     }
 
     /**
-     * It is called when parser receives an input matching the grammar
-     * rule (description), perform validations and updates the data model
-     * tree.
+     * It is called when parser receives an input matching the grammar rule
+     * (description), perform validations and updates the data model tree.
      *
      * @param listener listener's object
      * @param ctx context object of the grammar rule
      */
     public static void processDescriptionEntry(TreeWalkListener listener,
-                                             GeneratedYangParser.DescriptionStatementContext ctx) {
+            GeneratedYangParser.DescriptionStatementContext ctx) {
 
         // Check for stack to be non empty.
         checkStackIsNotEmpty(listener, MISSING_HOLDER, DESCRIPTION_DATA, ctx.string().getText(), ENTRY);
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/KeyListener.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/KeyListener.java
index 81223fd..9d215d2 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/KeyListener.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/KeyListener.java
@@ -45,8 +45,8 @@
  */
 
 /**
- * Represesnts listener based call back function corresponding to the "key"
- * rule defined in ANTLR grammar file for corresponding ABNF rule in RFC 6020.
+ * Represesnts listener based call back function corresponding to the "key" rule
+ * defined in ANTLR grammar file for corresponding ABNF rule in RFC 6020.
  */
 public final class KeyListener {
 
@@ -57,15 +57,14 @@
     }
 
     /**
-     * It is called when parser receives an input matching the grammar
-     * rule (key), perform validations and updates the data model
-     * tree.
+     * It is called when parser receives an input matching the grammar rule
+     * (key), perform validations and updates the data model tree.
      *
      * @param listener listener's object
      * @param ctx context object of the grammar rule
      */
     public static void processKeyEntry(TreeWalkListener listener,
-                                         GeneratedYangParser.KeyStatementContext ctx) {
+            GeneratedYangParser.KeyStatementContext ctx) {
 
         // Check for stack to be non empty.
         checkStackIsNotEmpty(listener, MISSING_HOLDER, KEY_DATA, ctx.key().getText(), ENTRY);
@@ -94,7 +93,7 @@
             }
         } else {
             throw new ParserException(constructListenerErrorMessage(INVALID_HOLDER, KEY_DATA, ctx.key().getText(),
-                            ENTRY));
+                    ENTRY));
         }
     }
 }
\ No newline at end of file
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/LeafListener.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/LeafListener.java
index 738ffa9..b8e3b2d 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/LeafListener.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/LeafListener.java
@@ -27,10 +27,13 @@
 import org.onosproject.yangutils.parser.exceptions.ParserException;
 import org.onosproject.yangutils.parser.impl.TreeWalkListener;
 
+import static org.onosproject.yangutils.datamodel.utils.GeneratedLanguage.JAVA_GENERATION;
+import static org.onosproject.yangutils.datamodel.utils.YangDataModelFactory.getYangLeaf;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerCollisionDetector.detectCollidingChildUtil;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.ENTRY;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.EXIT;
-import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction.constructListenerErrorMessage;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction
+        .constructListenerErrorMessage;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.INVALID_HOLDER;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.MISSING_CURRENT_HOLDER;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.MISSING_HOLDER;
@@ -108,7 +111,7 @@
         int charPositionInLine = ctx.getStart().getCharPositionInLine();
         detectCollidingChildUtil(listener, line, charPositionInLine, identifier, LEAF_DATA);
 
-        YangLeaf leaf = new YangLeaf();
+        YangLeaf leaf = getYangLeaf(JAVA_GENERATION);
         leaf.setLeafName(identifier);
 
         Parsable tmpData = listener.getParsedDataStack().peek();
@@ -142,7 +145,7 @@
             listener.getParsedDataStack().pop();
         } else {
             throw new ParserException(constructListenerErrorMessage(MISSING_CURRENT_HOLDER, LEAF_DATA,
-                            ctx.identifier().getText(), EXIT));
+                    ctx.identifier().getText(), EXIT));
         }
     }
 
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/TypeListener.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/TypeListener.java
index b611d6e..416ce91 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/TypeListener.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/TypeListener.java
@@ -16,7 +16,6 @@
 
 package org.onosproject.yangutils.parser.impl.listeners;
 
-import org.onosproject.yangutils.datamodel.ResolutionType;
 import org.onosproject.yangutils.datamodel.YangDataTypes;
 import org.onosproject.yangutils.datamodel.YangDerivedInfo;
 import org.onosproject.yangutils.datamodel.YangLeaf;
@@ -34,11 +33,14 @@
 import org.onosproject.yangutils.parser.impl.TreeWalkListener;
 import org.onosproject.yangutils.utils.YangConstructType;
 
+import static org.onosproject.yangutils.datamodel.ResolvableStatus.UNRESOLVED;
 import static org.onosproject.yangutils.datamodel.utils.DataModelUtils.addResolutionInfo;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.ENTRY;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorLocation.EXIT;
-import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction.constructExtendedListenerErrorMessage;
-import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction.constructListenerErrorMessage;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction
+        .constructExtendedListenerErrorMessage;
+import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorMessageConstruction
+        .constructListenerErrorMessage;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.INVALID_HOLDER;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.MISSING_CURRENT_HOLDER;
 import static org.onosproject.yangutils.parser.impl.parserutils.ListenerErrorType.MISSING_HOLDER;
@@ -123,17 +125,15 @@
                                 ctx.string().getText(), EXIT));
                     }
 
-                    // Get the prefix information
-                    String prefix = ((YangType<?>) type).getPrefix();
-
                     // Create empty derived info and attach it to type extended info.
                     YangDerivedInfo<?> yangDerivedInfo = new YangDerivedInfo<>();
                     ((YangType<YangDerivedInfo>) type).setDataTypeExtendedInfo(yangDerivedInfo);
 
+                    type.setResolvableStatus(UNRESOLVED);
+
                     // Add resolution information to the list
                     YangResolutionInfo resolutionInfo = new YangResolutionInfo<YangType>(type,
-                            ResolutionType.TYPEDEF_RESOLUTION, (YangNode) parentNodeOfLeaf, prefix, errorLine,
-                            errorPosition);
+                            (YangNode) parentNodeOfLeaf, errorLine, errorPosition);
                     addToResolutionList(resolutionInfo, ctx);
                 }
                 break;
@@ -165,9 +165,9 @@
                     ((YangType<YangDerivedInfo>) type).setDataTypeExtendedInfo(yangDerivedInfo);
 
                     // Add resolution information to the list
-                    YangResolutionInfo resolutionInfo = new YangResolutionInfo<YangType>(type,
-                            ResolutionType.TYPEDEF_RESOLUTION, (YangNode) parentNodeOfLeafList, prefix, errorLine,
-                            errorPosition);
+                    YangResolutionInfo resolutionInfo =
+                            new YangResolutionInfo<YangType>(type, (YangNode) parentNodeOfLeafList, errorLine,
+                                    errorPosition);
                     addToResolutionList(resolutionInfo, ctx);
                 }
                 break;
@@ -201,8 +201,8 @@
                     ((YangType<YangDerivedInfo>) type).setDataTypeExtendedInfo(yangDerivedInfo);
 
                     // Add resolution information to the list
-                    YangResolutionInfo resolutionInfo = new YangResolutionInfo<YangType>(type,
-                            ResolutionType.TYPEDEF_RESOLUTION, (YangNode) typeDef, prefix, errorLine, errorPosition);
+                    YangResolutionInfo resolutionInfo =
+                            new YangResolutionInfo<YangType>(type, (YangNode) typeDef, errorLine, errorPosition);
                     addToResolutionList(resolutionInfo, ctx);
                 }
                 break;
@@ -244,7 +244,7 @@
      * @param ctx context object of the grammar rule
      */
     private static void addToResolutionList(YangResolutionInfo<YangType> resolutionInfo,
-                                            GeneratedYangParser.TypeStatementContext ctx) {
+            GeneratedYangParser.TypeStatementContext ctx) {
         try {
             addResolutionInfo(resolutionInfo);
         } catch (DataModelException e) {
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerUtil.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerUtil.java
index ffb50e9..150e0d1 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerUtil.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerUtil.java
@@ -205,7 +205,7 @@
 
         Calendar date = Calendar.getInstance();
         SimpleDateFormat dateFormat = new SimpleDateFormat(DATE_FORMAT);
-        String dateForRevision = ((dateFormat.format(date.getTime())).replaceAll(SLASH, HYPHEN)).replaceAll(SPACE,
+        String dateForRevision = dateFormat.format(date.getTime()).replaceAll(SLASH, HYPHEN).replaceAll(SPACE,
                 EMPTY_STRING);
         return dateForRevision;
     }
@@ -218,8 +218,8 @@
      * @param ctx yang construct's context to get the line number and character position
      * @return valid node identifier
      */
-    public static YangNodeIdentifier getValidNodeIdentifier(String nodeIdentifierString, YangConstructType
-            yangConstruct, ParserRuleContext ctx) {
+    public static YangNodeIdentifier getValidNodeIdentifier(String nodeIdentifierString,
+            YangConstructType yangConstruct, ParserRuleContext ctx) {
         String tmpIdentifierString = removeQuotesAndHandleConcat(nodeIdentifierString);
         String[] tmpData = tmpIdentifierString.split(Pattern.quote(COLON));
         if (tmpData.length == 1) {
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/HasJavaQualifiedTypeInfo.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/HasJavaQualifiedTypeInfo.java
new file mode 100644
index 0000000..80b72cf
--- /dev/null
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/HasJavaQualifiedTypeInfo.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.yangutils.translator.tojava;
+
+/**
+ * Maintain the java qualified access details for an attribute or a class.
+ */
+public interface HasJavaQualifiedTypeInfo {
+
+    /**
+     * Obtain the java qualified details.
+     *
+     * @return java qualified type details
+     */
+    JavaQualifiedTypeInfo getJavaQualifiedInfo();
+
+    /**
+     * Assign the qualified type info.
+     *
+     * @param typeInfo qualified type information
+     */
+    void setJavaQualifiedInfo(JavaQualifiedTypeInfo typeInfo);
+}
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/TempJavaCodeFragmentFiles.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/TempJavaCodeFragmentFiles.java
index 25ed389..f63a997 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/TempJavaCodeFragmentFiles.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/TempJavaCodeFragmentFiles.java
@@ -1055,7 +1055,7 @@
     public void addTypeDefAttributeToTempFiles(YangNode curNode) throws IOException {
 
         JavaAttributeInfo javaAttributeInfo = getAttributeInfoOfTypeDef(curNode,
-                ((YangTypeDef) curNode).getDataType(),
+                ((YangTypeDef) curNode).getTypeDefBaseType(),
                 ((YangTypeDef) curNode).getName(), false);
         addJavaSnippetInfoToApplicableTempFiles(javaAttributeInfo);
     }
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaLeaf.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaLeaf.java
new file mode 100644
index 0000000..1ff57f4
--- /dev/null
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/tojava/javamodel/YangJavaLeaf.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.yangutils.translator.tojava.javamodel;
+
+import org.onosproject.yangutils.datamodel.YangLeaf;
+import org.onosproject.yangutils.translator.tojava.HasJavaQualifiedTypeInfo;
+import org.onosproject.yangutils.translator.tojava.JavaQualifiedTypeInfo;
+
+/**
+ * Maintains java information corresponding to the YANG leaf.
+ */
+public class YangJavaLeaf extends YangLeaf
+        implements HasJavaQualifiedTypeInfo {
+
+    private JavaQualifiedTypeInfo javaQualifiedAccess;
+
+    /**
+     * Create a YANG leaf object with java qualified access details.
+     */
+    public YangJavaLeaf() {
+        super();
+        setJavaQualifiedInfo(new JavaQualifiedTypeInfo());
+    }
+
+    @Override
+    public JavaQualifiedTypeInfo getJavaQualifiedInfo() {
+        return javaQualifiedAccess;
+    }
+
+    @Override
+    public void setJavaQualifiedInfo(JavaQualifiedTypeInfo typeInfo) {
+        javaQualifiedAccess = typeInfo;
+
+    }
+
+}
diff --git a/utils/yangutils/src/test/java/org/onosproject/yangutils/linker/IntraFileTypeLinkingTest.java b/utils/yangutils/src/test/java/org/onosproject/yangutils/linker/IntraFileTypeLinkingTest.java
index eaf4076..52fb4ff 100644
--- a/utils/yangutils/src/test/java/org/onosproject/yangutils/linker/IntraFileTypeLinkingTest.java
+++ b/utils/yangutils/src/test/java/org/onosproject/yangutils/linker/IntraFileTypeLinkingTest.java
@@ -18,6 +18,7 @@
 
 import java.io.IOException;
 import java.util.ListIterator;
+
 import org.junit.Test;
 import org.onosproject.yangutils.datamodel.ResolvableStatus;
 import org.onosproject.yangutils.datamodel.YangContainer;
@@ -46,7 +47,8 @@
      * Checks self resolution when typedef and leaf using type are siblings.
      */
     @Test
-    public void processSelfResolutionWhenTypeAndTypedefAtRootLevel() throws IOException, ParserException {
+    public void processSelfResolutionWhenTypeAndTypedefAtRootLevel()
+            throws IOException, ParserException {
 
         YangNode node = manager.getDataModel("src/test/resources/SelfResolutionWhenTypeAndTypedefAtRootLevel.yang");
 
@@ -79,7 +81,8 @@
      * level where typedef is at the root.
      */
     @Test
-    public void processSelfFileLinkingTypedefAtRootTypeTwoLevelInHierarchy() throws IOException, ParserException {
+    public void processSelfFileLinkingTypedefAtRootTypeTwoLevelInHierarchy()
+            throws IOException, ParserException {
 
         YangNode node =
                 manager.getDataModel("src/test/resources/SelfFileLinkingTypedefAtRootTypeTwoLevelInHierarchy.yang");
@@ -118,7 +121,8 @@
      * of type.
      */
     @Test
-    public void processSelfFileLinkingTypedefAtRootIsAfterContainerHavingType() throws IOException, ParserException {
+    public void processSelfFileLinkingTypedefAtRootIsAfterContainerHavingType()
+            throws IOException, ParserException {
 
         YangNode node =
                 manager.getDataModel("src/test/resources/SelfFileLinkingTypedefAtRootIsAfterContainerHavingType.yang");
@@ -157,7 +161,8 @@
      * holder of type.
      */
     @Test
-    public void processSelfFileLinkingTypedefAtMiddleLevelAfterParentHolder() throws IOException, ParserException {
+    public void processSelfFileLinkingTypedefAtMiddleLevelAfterParentHolder()
+            throws IOException, ParserException {
 
         YangNode node =
                 manager.getDataModel("src/test/resources/SelfFileLinkingTypedefAtMiddleLevelAfterParentHolder.yang");
@@ -194,7 +199,8 @@
      * Checks self resolution when typedef hierarchical references are present.
      */
     @Test
-    public void processSelfFileLinkingWithTypdefHierarchicalReference() throws IOException, ParserException {
+    public void processSelfFileLinkingWithTypdefHierarchicalReference()
+            throws IOException, ParserException {
 
         YangNode node =
                 manager.getDataModel("src/test/resources/SelfFileLinkingWithTypdefHierarchicalReference.yang");
@@ -227,16 +233,16 @@
 
         YangTypeDef typeDef1 = (YangTypeDef) yangList.getChild();
 
-        assertThat(((YangDerivedInfo<?>) typeDef1.getDataType().getDataTypeExtendedInfo()).getReferredTypeDef(),
+        assertThat(((YangDerivedInfo<?>) typeDef1.getTypeDefBaseType().getDataTypeExtendedInfo()).getReferredTypeDef(),
                 is((YangTypeDef) yangContainer.getChild().getNextSibling()));
-        assertThat((typeDef1.getDataType().getResolvableStatus()),
+        assertThat((typeDef1.getTypeDefBaseType().getResolvableStatus()),
                 is(ResolvableStatus.RESOLVED));
 
         YangTypeDef typeDef2 = (YangTypeDef) yangContainer.getChild().getNextSibling();
 
-        assertThat(((YangDerivedInfo<?>) typeDef2.getDataType().getDataTypeExtendedInfo()).getReferredTypeDef(),
+        assertThat(((YangDerivedInfo<?>) typeDef2.getTypeDefBaseType().getDataTypeExtendedInfo()).getReferredTypeDef(),
                 is((YangTypeDef) node.getChild()));
-        assertThat((typeDef2.getDataType().getResolvableStatus()),
+        assertThat((typeDef2.getTypeDefBaseType().getResolvableStatus()),
                 is(ResolvableStatus.RESOLVED));
     }
 
@@ -245,7 +251,8 @@
      * with last type is unresolved.
      */
     @Test
-    public void processSelfFileLinkingWithTypdefHierarchicalRefUnresolved() throws IOException, ParserException {
+    public void processSelfFileLinkingWithTypdefHierarchicalRefUnresolved()
+            throws IOException, ParserException {
 
         YangNode node =
                 manager.getDataModel("src/test/resources/SelfFileLinkingWithTypdefHierarchicalRefUnresolved.yang");
@@ -274,28 +281,29 @@
         assertThat(((YangDerivedInfo<?>) leafInfo.getDataType().getDataTypeExtendedInfo()).getReferredTypeDef(),
                 is((YangTypeDef) yangList.getChild()));
         assertThat((leafInfo.getDataType().getResolvableStatus()),
-                is(ResolvableStatus.PARTIALLY_RESOLVED));
+                is(ResolvableStatus.INTRA_FILE_RESOLVED));
 
         YangTypeDef typeDef1 = (YangTypeDef) yangList.getChild();
 
-        assertThat(((YangDerivedInfo<?>) typeDef1.getDataType().getDataTypeExtendedInfo()).getReferredTypeDef(),
+        assertThat(((YangDerivedInfo<?>) typeDef1.getTypeDefBaseType().getDataTypeExtendedInfo()).getReferredTypeDef(),
                 is((YangTypeDef) yangContainer.getChild().getNextSibling()));
-        assertThat((typeDef1.getDataType().getResolvableStatus()),
-                is(ResolvableStatus.PARTIALLY_RESOLVED));
+        assertThat((typeDef1.getTypeDefBaseType().getResolvableStatus()),
+                is(ResolvableStatus.INTRA_FILE_RESOLVED));
 
         YangTypeDef typeDef2 = (YangTypeDef) yangContainer.getChild().getNextSibling();
 
-        assertThat(((YangDerivedInfo<?>) typeDef2.getDataType().getDataTypeExtendedInfo()).getReferredTypeDef(),
+        assertThat(((YangDerivedInfo<?>) typeDef2.getTypeDefBaseType().getDataTypeExtendedInfo()).getReferredTypeDef(),
                 is((YangTypeDef) node.getChild()));
-        assertThat((typeDef2.getDataType().getResolvableStatus()),
-                is(ResolvableStatus.PARTIALLY_RESOLVED));
+        assertThat((typeDef2.getTypeDefBaseType().getResolvableStatus()),
+                is(ResolvableStatus.INTRA_FILE_RESOLVED));
     }
 
     /**
      * Checks self resolution when type uses prefix of self module.
      */
     @Test
-    public void processSelfFileLinkingWithTypeWithSelfModulePrefix() throws IOException, ParserException {
+    public void processSelfFileLinkingWithTypeWithSelfModulePrefix()
+            throws IOException, ParserException {
 
         YangNode node =
                 manager.getDataModel("src/test/resources/SelfFileLinkingWithTypeWithSelfModulePrefix.yang");
@@ -328,16 +336,16 @@
 
         YangTypeDef typeDef1 = (YangTypeDef) yangList.getChild();
 
-        assertThat(((YangDerivedInfo<?>) typeDef1.getDataType().getDataTypeExtendedInfo()).getReferredTypeDef(),
+        assertThat(((YangDerivedInfo<?>) typeDef1.getTypeDefBaseType().getDataTypeExtendedInfo()).getReferredTypeDef(),
                 is((YangTypeDef) yangContainer.getChild().getNextSibling()));
-        assertThat((typeDef1.getDataType().getResolvableStatus()),
+        assertThat((typeDef1.getTypeDefBaseType().getResolvableStatus()),
                 is(ResolvableStatus.RESOLVED));
 
         YangTypeDef typeDef2 = (YangTypeDef) yangContainer.getChild().getNextSibling();
 
-        assertThat(((YangDerivedInfo<?>) typeDef2.getDataType().getDataTypeExtendedInfo()).getReferredTypeDef(),
+        assertThat(((YangDerivedInfo<?>) typeDef2.getTypeDefBaseType().getDataTypeExtendedInfo()).getReferredTypeDef(),
                 is((YangTypeDef) node.getChild()));
-        assertThat((typeDef2.getDataType().getResolvableStatus()),
+        assertThat((typeDef2.getTypeDefBaseType().getResolvableStatus()),
                 is(ResolvableStatus.RESOLVED));
     }
 
@@ -346,7 +354,8 @@
      * some uses external prefix.
      */
     @Test
-    public void processSelfFileLinkingWithTypeWithSelfAndExternalPrefixMix() throws IOException, ParserException {
+    public void processSelfFileLinkingWithTypeWithSelfAndExternalPrefixMix()
+            throws IOException, ParserException {
 
         YangNode node =
                 manager.getDataModel("src/test/resources/SelfFileLinkingWithTypeWithSelfAndExternalPrefixMix.yang");
@@ -375,15 +384,15 @@
         assertThat(((YangDerivedInfo<?>) leafInfo.getDataType().getDataTypeExtendedInfo()).getReferredTypeDef(),
                 is((YangTypeDef) yangList.getChild()));
         assertThat((leafInfo.getDataType().getResolvableStatus()),
-                is(ResolvableStatus.PARTIALLY_RESOLVED));
+                is(ResolvableStatus.INTRA_FILE_RESOLVED));
 
         YangTypeDef typeDef1 = (YangTypeDef) yangList.getChild();
 
         YangTypeDef typeDef2 = (YangTypeDef) yangContainer.getChild().getNextSibling();
 
-        assertThat(((YangDerivedInfo<?>) typeDef2.getDataType().getDataTypeExtendedInfo()).getReferredTypeDef(),
+        assertThat(((YangDerivedInfo<?>) typeDef2.getTypeDefBaseType().getDataTypeExtendedInfo()).getReferredTypeDef(),
                 is((YangTypeDef) node.getChild()));
-        assertThat((typeDef2.getDataType().getResolvableStatus()),
+        assertThat((typeDef2.getTypeDefBaseType().getResolvableStatus()),
                 is(ResolvableStatus.RESOLVED));
     }
 
@@ -392,7 +401,8 @@
      * file.
      */
     @Test(expected = ParserException.class)
-    public void processSelfResolutionWhenTypeReferredTypedefNotDefined() throws IOException, ParserException {
+    public void processSelfResolutionWhenTypeReferredTypedefNotDefined()
+            throws IOException, ParserException {
 
         YangNode node =
                 manager.getDataModel("src/test/resources/SelfResolutionWhenTypeReferredTypedefNotDefined.yang");
@@ -403,7 +413,8 @@
      * level where typedef is is not an ancestor of type.
      */
     @Test(expected = ParserException.class)
-    public void processSelfFileLinkingTypedefNotFound() throws IOException, ParserException {
+    public void processSelfFileLinkingTypedefNotFound()
+            throws IOException, ParserException {
 
         YangNode node = manager.getDataModel("src/test/resources/SelfFileLinkingTypedefNotFound.yang");
     }
@@ -412,7 +423,8 @@
      * Checks hierarchical self resolution with self resolution failure scenario.
      */
     @Test(expected = ParserException.class)
-    public void processSelfFileLinkingWithHierarchicalTypeFailureScenario() throws IOException, ParserException {
+    public void processSelfFileLinkingWithHierarchicalTypeFailureScenario()
+            throws IOException, ParserException {
 
         YangNode node =
                 manager.getDataModel("src/test/resources/SelfFileLinkingWithHierarchicalTypeFailureScenario.yang");
diff --git a/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/InputListenerTest.java b/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/InputListenerTest.java
index 7ec10cf..95c402a 100644
--- a/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/InputListenerTest.java
+++ b/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/InputListenerTest.java
@@ -106,6 +106,6 @@
         YangTypeDef typeDef = (YangTypeDef) yangInput.getChild();
         assertThat(typeDef.getName(), is("my-type"));
         assertThat(typeDef.getStatus(), is(YangStatusType.DEPRECATED));
-        assertThat(typeDef.getDataType().getDataType(), is(YangDataTypes.INT32));
+        assertThat(typeDef.getTypeDefBaseType().getDataType(), is(YangDataTypes.INT32));
     }
 }
diff --git a/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/LengthRestrictionListenerTest.java b/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/LengthRestrictionListenerTest.java
index e5e647a..a8f494b 100644
--- a/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/LengthRestrictionListenerTest.java
+++ b/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/LengthRestrictionListenerTest.java
@@ -128,7 +128,7 @@
         assertThat(yangNode.getName(), is("Test"));
 
         YangTypeDef typedef = (YangTypeDef) yangNode.getChild();
-        YangStringRestriction stringRestriction = (YangStringRestriction) typedef.getDataType()
+        YangStringRestriction stringRestriction = (YangStringRestriction) typedef.getTypeDefBaseType()
                 .getDataTypeExtendedInfo();
 
         YangRangeRestriction lengthRestriction = stringRestriction.getLengthRestriction();
@@ -234,4 +234,4 @@
                 " 18446744073709551615.");
         YangNode node = manager.getDataModel("src/test/resources/LengthWithInvalidInterval.yang");
     }
-}
\ No newline at end of file
+}
diff --git a/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/OutputListenerTest.java b/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/OutputListenerTest.java
index f6a5437..ded5c49 100644
--- a/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/OutputListenerTest.java
+++ b/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/OutputListenerTest.java
@@ -108,6 +108,6 @@
         assertThat(typeDef.getStatus(), is(YangStatusType.DEPRECATED));
         assertThat(typeDef.getName(), is("my-type"));
         assertThat(typeDef.getStatus(), is(YangStatusType.DEPRECATED));
-        assertThat(typeDef.getDataType().getDataType(), is(YangDataTypes.INT32));
+        assertThat(typeDef.getTypeDefBaseType().getDataType(), is(YangDataTypes.INT32));
     }
-}
\ No newline at end of file
+}
diff --git a/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/PatternRestrictionListenerTest.java b/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/PatternRestrictionListenerTest.java
index ffd8470..fb0ec72 100644
--- a/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/PatternRestrictionListenerTest.java
+++ b/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/PatternRestrictionListenerTest.java
@@ -108,7 +108,7 @@
         assertThat(yangNode.getName(), is("Test"));
 
         YangTypeDef typedef = (YangTypeDef) yangNode.getChild();
-        YangStringRestriction stringRestriction = (YangStringRestriction) typedef.getDataType()
+        YangStringRestriction stringRestriction = (YangStringRestriction) typedef.getTypeDefBaseType()
                 .getDataTypeExtendedInfo();
 
         YangPatternRestriction yangPatternRestriction = stringRestriction.getPatternRestriction();
@@ -166,4 +166,4 @@
                 .getPatternList().listIterator();
         assertThat(patternListIterator.next(), is("-[0-9]+|[0-9]+"));
     }
-}
\ No newline at end of file
+}
diff --git a/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/RpcListenerTest.java b/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/RpcListenerTest.java
index adb88dc..3af045d 100644
--- a/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/RpcListenerTest.java
+++ b/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/RpcListenerTest.java
@@ -61,6 +61,6 @@
         YangTypeDef typeDef = (YangTypeDef) yangRpc.getChild();
         assertThat(typeDef.getName(), is("my-type"));
         assertThat(typeDef.getStatus(), is(YangStatusType.DEPRECATED));
-        assertThat(typeDef.getDataType().getDataType(), is(YangDataTypes.INT32));
+        assertThat(typeDef.getTypeDefBaseType().getDataType(), is(YangDataTypes.INT32));
     }
 }
diff --git a/utils/yangutils/src/test/resources/DerivedTypeStatement.yang b/utils/yangutils/src/test/resources/DerivedTypeStatement.yang
index 952b7d4..afbfd1d 100644
--- a/utils/yangutils/src/test/resources/DerivedTypeStatement.yang
+++ b/utils/yangutils/src/test/resources/DerivedTypeStatement.yang
@@ -2,6 +2,9 @@
     yang-version 1;
     namespace http://huawei.com;
     prefix Ant;
+    import ietf-yang-types {
+             prefix "P";
+         }
     leaf invalid-interval {
         type P:hello;
     }
diff --git a/utils/yangutils/src/test/resources/DuplicateGroupingInList.yang b/utils/yangutils/src/test/resources/DuplicateGroupingInList.yang
index 2457cbe..a9d1b3b 100644
--- a/utils/yangutils/src/test/resources/DuplicateGroupingInList.yang
+++ b/utils/yangutils/src/test/resources/DuplicateGroupingInList.yang
@@ -2,6 +2,9 @@
     yang-version 1;
     namespace http://huawei.com;
     prefix Ant;
+    import ietf-yang-types {
+             prefix "P";
+         }
     list valid {
         key address;
         grouping endpoint {
diff --git a/utils/yangutils/src/test/resources/DuplicateGroupingInModule.yang b/utils/yangutils/src/test/resources/DuplicateGroupingInModule.yang
index d18b166..ec01781 100644
--- a/utils/yangutils/src/test/resources/DuplicateGroupingInModule.yang
+++ b/utils/yangutils/src/test/resources/DuplicateGroupingInModule.yang
@@ -2,20 +2,23 @@
     yang-version 1;
     namespace http://huawei.com;
     prefix Ant;
+    import ietf-yang-types {
+             prefix "P";
+         }
     grouping endpoint {
         leaf address {
-            type ip-address;
+            type P:ip-address;
         }
         leaf port {
-            type port-number;
+            type P:port-number;
         }
     }
     grouping endpoint {
         leaf address {
-            type ip-address;
+            type P:pip-address;
         }
         leaf port {
-            type port-number;
+            type P:port-number;
         }
     }
 }
diff --git a/utils/yangutils/src/test/resources/GroupingAttributes.yang b/utils/yangutils/src/test/resources/GroupingAttributes.yang
index 977adc5..f04641f 100644
--- a/utils/yangutils/src/test/resources/GroupingAttributes.yang
+++ b/utils/yangutils/src/test/resources/GroupingAttributes.yang
@@ -2,6 +2,9 @@
     yang-version 1;
     namespace http://huawei.com;
     prefix Ant;
+    import ietf-yang-types {
+             prefix "P";
+         }
     list valid {
         key address;
         leaf address {
diff --git a/utils/yangutils/src/test/resources/GroupingInContainer.yang b/utils/yangutils/src/test/resources/GroupingInContainer.yang
index 7c51913..dfa8259 100644
--- a/utils/yangutils/src/test/resources/GroupingInContainer.yang
+++ b/utils/yangutils/src/test/resources/GroupingInContainer.yang
@@ -2,6 +2,9 @@
     yang-version 1;
     namespace http://huawei.com;
     prefix Ant;
+    import ietf-yang-types {
+             prefix "P";
+         }
     container valid {
         grouping endpoint {
             leaf address {
diff --git a/utils/yangutils/src/test/resources/GroupingInList.yang b/utils/yangutils/src/test/resources/GroupingInList.yang
index a8fad09..c5966fc 100644
--- a/utils/yangutils/src/test/resources/GroupingInList.yang
+++ b/utils/yangutils/src/test/resources/GroupingInList.yang
@@ -2,6 +2,9 @@
     yang-version 1;
     namespace http://huawei.com;
     prefix Ant;
+    import ietf-yang-types {
+             prefix "P";
+         }
     list valid {
         key address;
         leaf address {
diff --git a/utils/yangutils/src/test/resources/GroupingInModule.yang b/utils/yangutils/src/test/resources/GroupingInModule.yang
index 7d513a4..77fef1f 100644
--- a/utils/yangutils/src/test/resources/GroupingInModule.yang
+++ b/utils/yangutils/src/test/resources/GroupingInModule.yang
@@ -2,6 +2,9 @@
     yang-version 1;
     namespace http://huawei.com;
     prefix Ant;
+    import ietf-yang-types {
+             prefix "P";
+         }
     grouping endpoint {
         leaf address {
             type P:ip-address;
diff --git a/utils/yangutils/src/test/resources/SelfFileLinkingWithTypdefHierarchicalRefUnresolved.yang b/utils/yangutils/src/test/resources/SelfFileLinkingWithTypdefHierarchicalRefUnresolved.yang
index 35c28b6..a3e4379 100644
--- a/utils/yangutils/src/test/resources/SelfFileLinkingWithTypdefHierarchicalRefUnresolved.yang
+++ b/utils/yangutils/src/test/resources/SelfFileLinkingWithTypdefHierarchicalRefUnresolved.yang
@@ -2,6 +2,9 @@
     yang-version 1;
     namespace http://huawei.com;
     prefix Ant;
+    import ietf-yang-types {
+             prefix "P";
+         }
     typedef Percentage {
     type P:Per;
     }
diff --git a/utils/yangutils/src/test/resources/SelfFileLinkingWithTypeWithSelfAndExternalPrefixMix.yang b/utils/yangutils/src/test/resources/SelfFileLinkingWithTypeWithSelfAndExternalPrefixMix.yang
index 038c7de..d5f346e 100644
--- a/utils/yangutils/src/test/resources/SelfFileLinkingWithTypeWithSelfAndExternalPrefixMix.yang
+++ b/utils/yangutils/src/test/resources/SelfFileLinkingWithTypeWithSelfAndExternalPrefixMix.yang
@@ -2,6 +2,9 @@
     yang-version 1;
     namespace http://huawei.com;
     prefix Ant;
+    import ietf-yang-types {
+             prefix "P";
+         }
     typedef Percentage {
     type int32;
     }
diff --git a/utils/yangutils/src/test/resources/UsesInList.yang b/utils/yangutils/src/test/resources/UsesInList.yang
index c4fd47d..b79e7b1 100644
--- a/utils/yangutils/src/test/resources/UsesInList.yang
+++ b/utils/yangutils/src/test/resources/UsesInList.yang
@@ -2,6 +2,9 @@
     yang-version 1;
     namespace http://huawei.com;
     prefix Ant;
+    import ietf-yang-types {
+             prefix "P";
+         }
     list valid {
         key address;
         leaf address {
diff --git a/utils/yangutils/src/test/resources/ValidAugmentStatement.yang b/utils/yangutils/src/test/resources/ValidAugmentStatement.yang
index 59ebe67..6175c35 100644
--- a/utils/yangutils/src/test/resources/ValidAugmentStatement.yang
+++ b/utils/yangutils/src/test/resources/ValidAugmentStatement.yang
@@ -6,6 +6,9 @@
     import interface-module {
         prefix "if";
     }
+    import ietf-yang-types {
+             prefix "P";
+         }
     augment "/if:interfaces/if:ifEntry" {
         when "if:ifType='ds0'";
         leaf ds0ChannelNumber {
diff --git a/utils/yangutils/src/test/resources/ValidNotificationStatement.yang b/utils/yangutils/src/test/resources/ValidNotificationStatement.yang
index d588bb9..072df23 100644
--- a/utils/yangutils/src/test/resources/ValidNotificationStatement.yang
+++ b/utils/yangutils/src/test/resources/ValidNotificationStatement.yang
@@ -2,6 +2,9 @@
     namespace "http://example.net/rock";
     prefix "rock";
 
+    import ietf-yang-types {
+             prefix "P";
+         }
     notification link-failure {
         description "A link failure has been detected";
         status deprecated;