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diff --git a/appc-metric/appc-metric-bundle/src/main/java/org/onap/appc/metricservice/metric/Metric.java b/appc-metric/appc-metric-bundle/src/main/java/org/onap/appc/metricservice/metric/Metric.java
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+++ b/appc-metric/appc-metric-bundle/src/main/java/org/onap/appc/metricservice/metric/Metric.java
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+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * 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.
+ * 
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.metricservice.metric;
+
+import java.util.HashMap;
+
+/**
+ *
+ * a measure of system parameter at the current moment. Each metric is identified by name.
+ * In general case, a metric just reflects its (almost) real-time value and is not responsible for maintaining its historical data.
+ * One that needs to build series of a metric values for statistical/analytic purposes should query the value and store it for further processing.
+ * Metrics can be of different types - counters, timers etc.
+ * The initial service implementation supports simple (flat) counters only.
+ *
+ */
+public interface Metric {
+    String name();
+    void reset();
+    MetricType type();
+    /**
+     * This API will be used to get all the running Metrics Output.
+     * @return HashMap <String,String> in which
+     * the First String(Key) will be the name of the KPI property
+     * and another String(Value of the Key) will be the Value of
+     * that property for that KPI
+     */
+    HashMap<String,String> getMetricsOutput();
+    /**
+     * Return last modified date for  KPI in string format
+     * @return - last modified date for KPI
+     */
+    String getLastModified();
+}