diff --git a/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangAtomicPath.java b/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangAtomicPath.java
new file mode 100644
index 0000000..6df33bb
--- /dev/null
+++ b/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangAtomicPath.java
@@ -0,0 +1,78 @@
+/*
+ * 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 java.io.Serializable;
+import java.util.List;
+
+/**
+ * Representation of data model node to maintain absolute path defined in YANG path-arg.
+ */
+public class YangAtomicPath implements Serializable {
+
+    private static final long serialVersionUID = 806201688L;
+
+    // YANG node identifier.
+    private YangNodeIdentifier nodeIdentifier;
+
+    // List of path predicates expression.
+    private List<YangPathPredicate> pathPredicatesList;
+
+    /**
+     * Returns the node identifier.
+     *
+     * @return the node identifier
+     */
+    public YangNodeIdentifier getNodeIdentifier() {
+        return nodeIdentifier;
+    }
+
+    /**
+     * Sets the node identifier.
+     *
+     * @param nodeIdentifier Sets the node identifier
+     */
+    public void setNodeIdentifier(YangNodeIdentifier nodeIdentifier) {
+        this.nodeIdentifier = nodeIdentifier;
+    }
+
+    /**
+     * Returns the path predicate expression.
+     *
+     * @return the path predicate expression
+     */
+    public List<YangPathPredicate> getPathPredicatesList() {
+        return pathPredicatesList;
+    }
+
+    /**
+     * Sets the path predicate expression.
+     *
+     * @param pathPredicatesList Sets the path predicate expression
+     */
+    public void setPathPredicatesList(List<YangPathPredicate> pathPredicatesList) {
+        this.pathPredicatesList = pathPredicatesList;
+    }
+
+    /**
+     * Adds predicate expression in data holder.
+     *
+     * @param predicatesExp the predicate expression to be added
+     */
+    public void addLeavesPredicate(YangPathPredicate predicatesExp) {
+        getPathPredicatesList().add(predicatesExp);
+    }
+}
diff --git a/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangPathArgType.java b/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangPathArgType.java
new file mode 100644
index 0000000..5939829
--- /dev/null
+++ b/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangPathArgType.java
@@ -0,0 +1,29 @@
+/*
+ * 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;
+
+/**
+ * Represents path argument type in data model tree.
+ */
+public enum YangPathArgType {
+
+    // Absolute path.
+    ABSOLUTE_PATH,
+
+    // Relative path.
+    RELATIVE_PATH
+
+}
diff --git a/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangPathOperator.java b/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangPathOperator.java
new file mode 100644
index 0000000..718c30c
--- /dev/null
+++ b/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangPathOperator.java
@@ -0,0 +1,25 @@
+/*
+ * 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;
+
+/**
+ * Represents path-expr in data model tree.
+ */
+public enum YangPathOperator {
+
+    // Path expression contains equal to.
+    EQUALTO
+}
diff --git a/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangPathPredicate.java b/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangPathPredicate.java
new file mode 100644
index 0000000..cf45349
--- /dev/null
+++ b/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangPathPredicate.java
@@ -0,0 +1,132 @@
+/*
+ * 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 java.io.Serializable;
+
+/**
+ * Representation of data model node to maintain path predicate in YANG absolute-path or relative-path.
+ */
+public class YangPathPredicate<T> implements Serializable {
+
+    private static final long serialVersionUID = 806201689L;
+
+    // YANG node identifier.
+    private YangNodeIdentifier nodeIdentifier;
+
+    // Left axis node will represent the nodeidentifier before equality sign in path predicate.
+    private T leftAxisNode;
+
+    // YANG path operator.
+    private YangPathOperator pathOperator;
+
+    // YANG relative path.
+    private YangRelativePath rightRelativePath;
+
+    // Right axis node will represent the nodeidentifier after equality sign in path predicate.
+    private T rightAxisNode;
+
+    /**
+     * Returns the path expression operator.
+     *
+     * @return the path expression operator
+     */
+    public YangPathOperator getPathOperator() {
+        return pathOperator;
+    }
+
+    /**
+     * Sets the path expression operator.
+     *
+     * @param pathOperator Sets the path expression operator
+     */
+    public void setPathOperator(YangPathOperator pathOperator) {
+        this.pathOperator = pathOperator;
+    }
+
+    /**
+     * Returns the right relative path expression.
+     *
+     * @return the right relative path expression
+     */
+    public YangRelativePath getRightRelativePath() {
+        return rightRelativePath;
+    }
+
+    /**
+     * Sets the right relative path expression.
+     *
+     * @param rightRelativePath Sets the right relative path expression
+     */
+    public void setRightRelativePath(YangRelativePath rightRelativePath) {
+        this.rightRelativePath = rightRelativePath;
+    }
+
+    /**
+     * Returns the nodeidentifier.
+     *
+     * @return the nodeidentifier
+     */
+    public YangNodeIdentifier getNodeIdentifier() {
+        return nodeIdentifier;
+    }
+
+    /**
+     * Sets the YANG node identifier.
+     *
+     * @param nodeIdentifier Sets the node identifier
+     *
+     */
+    public void setNodeIdentifier(YangNodeIdentifier nodeIdentifier) {
+        this.nodeIdentifier = nodeIdentifier;
+    }
+
+    /**
+     * Returns the left axis node.
+     *
+     * @return the left axis node
+     */
+    public T getLeftAxisNode() {
+        return leftAxisNode;
+    }
+
+    /**
+     * Sets the left axis node.
+     *
+     * @param leftAxisNode Sets the left axis node
+     */
+    public void setLeftAxisNode(T leftAxisNode) {
+        this.leftAxisNode = leftAxisNode;
+    }
+
+    /**
+     * Returns the right axis node.
+     *
+     * @return the right axis node
+     */
+    public T getRightAxisNode() {
+        return rightAxisNode;
+    }
+
+    /**
+     * Sets the right axis node.
+     *
+     * @param rightAxisNode Sets the right axis node
+     */
+    public void setRightAxisNode(T rightAxisNode) {
+        this.rightAxisNode = rightAxisNode;
+    }
+}
diff --git a/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangRelativePath.java b/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangRelativePath.java
new file mode 100644
index 0000000..a7af2a2
--- /dev/null
+++ b/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangRelativePath.java
@@ -0,0 +1,69 @@
+/*
+ * 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 java.io.Serializable;
+import java.util.List;
+
+/**
+ * Representation of data model node to maintain relative path defined in YANG path-arg.
+ */
+public class YangRelativePath implements Serializable {
+
+    private static final long serialVersionUID = 806201690L;
+
+    // Relative path ancestor node count the number of node exist between current node to parent node.
+    private int ancestorNodeCount;
+
+    // Absolute path expression.
+    private List<YangAtomicPath> atomicPathList;
+
+    /**
+     * Returns the absolute path.
+     *
+     * @return the absolute path
+     */
+    public List<YangAtomicPath> getAtomicPathList() {
+        return atomicPathList;
+    }
+
+    /**
+     * Sets the absolute path.
+     *
+     * @param atomicPathList Sets the absolute path
+     */
+    public void setAtomicPathList(List<YangAtomicPath> atomicPathList) {
+        this.atomicPathList = atomicPathList;
+    }
+
+    /**
+     * Returns the relative path ancestor count.
+     *
+     * @return the relative path ancestor count
+     */
+    public int getAncestorNodeCount() {
+        return ancestorNodeCount;
+    }
+
+    /**
+     * Sets the relative path ancestor count.
+     *
+     * @param ancestorNodeCount Sets the relative path ancestor count
+     */
+    public void setAncestorNodeCount(int ancestorNodeCount) {
+        this.ancestorNodeCount = ancestorNodeCount;
+    }
+}