diff --git a/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/flowClassifier/FlowClassifierService.java b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/flowClassifier/FlowClassifierService.java
new file mode 100644
index 0000000..e379be8
--- /dev/null
+++ b/apps/vtn/vtnrsc/src/main/java/org/onosproject/vtnrsc/flowClassifier/FlowClassifierService.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2015 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.vtnrsc.flowClassifier;
+
+import org.onosproject.vtnrsc.FlowClassifier;
+import org.onosproject.vtnrsc.FlowClassifierId;
+
+/**
+ * Provides Services for Flow Classifier.
+ */
+public interface FlowClassifierService {
+
+    /**
+     * Store Flow Classifier.
+     *
+     * @param flowClassifier Flow Classifier
+     * @return true if adding Flow Classifier into store is success otherwise return false.
+     */
+    boolean createFlowClassifier(FlowClassifier flowClassifier);
+
+    /**
+     * Return the existing collection of Flow Classifier.
+     *
+     * @return Flow Classifier collections.
+     */
+    Iterable<FlowClassifier> getFlowClassifiers();
+
+    /**
+     * Check whether Flow Classifier is present based on given Flow Classifier Id.
+     *
+     * @param id Flow Classifier.
+     * @return true if Flow Classifier is present otherwise return false.
+     */
+    boolean hasFlowClassifier(FlowClassifierId id);
+
+    /**
+     * Retrieve the Flow Classifier based on given Flow Classifier id.
+     *
+     * @param id Flow Classifier Id.
+     * @return Flow Classifier if present otherwise returns null.
+     */
+    FlowClassifier getFlowClassifier(FlowClassifierId id);
+
+    /**
+     * Update Flow Classifier based on given Flow Classifier Id.
+     *
+     * @param flowClassifier Flow Classifier.
+     * @return true if update is success otherwise return false.
+     */
+    boolean updateFlowClassifier(FlowClassifier flowClassifier);
+
+    /**
+     * Remove Flow Classifier from store based on given Flow Classifier Id.
+     *
+     * @param id Flow Classifier Id.
+     * @return true if Flow Classifier removal is success otherwise return false.
+     */
+    boolean removeFlowClassifier(FlowClassifierId id);
+}
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