diff --git a/osam-core-framework/api/pom.xml b/osam-core-framework/api/pom.xml
new file mode 100644
index 0000000..0221e6c
--- /dev/null
+++ b/osam-core-framework/api/pom.xml
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--/*-
+        * ============LICENSE_START=======================================================
+        * OSAM Core
+        * ================================================================================
+        * Copyright (C) 2018 Netsia
+        * ================================================================================
+        * 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.
+        * ============LICENSE_END=========================================================
+        */-->
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>osam-core-framework</artifactId>
+        <groupId>org.onap.osam</groupId>
+        <version>0.0.2</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>api</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.onap.osam</groupId>
+            <artifactId>model</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.onap.osam</groupId>
+            <artifactId>common</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+    </dependencies>
+
+</project>
\ No newline at end of file
diff --git a/osam-core-framework/api/src/main/java/org/onap/osam/api/service/AbstractStorageService.java b/osam-core-framework/api/src/main/java/org/onap/osam/api/service/AbstractStorageService.java
new file mode 100644
index 0000000..c7c7375
--- /dev/null
+++ b/osam-core-framework/api/src/main/java/org/onap/osam/api/service/AbstractStorageService.java
@@ -0,0 +1,36 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * OSAM Core
+ * ================================================================================
+ * Copyright (C) 2018 Netsia
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+
+
+package org.onap.osam.api.service;
+
+import java.util.List;
+
+public interface AbstractStorageService <K,V>{
+
+    V addOrUpdate(V value);
+
+    void removeById(K key);
+
+    V getById(K key);
+
+    List<V> getAll();
+}
diff --git a/osam-core-framework/api/src/main/java/org/onap/osam/api/service/AccessPodService.java b/osam-core-framework/api/src/main/java/org/onap/osam/api/service/AccessPodService.java
new file mode 100644
index 0000000..da0a9b9
--- /dev/null
+++ b/osam-core-framework/api/src/main/java/org/onap/osam/api/service/AccessPodService.java
@@ -0,0 +1,33 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * OSAM Core
+ * ================================================================================
+ * Copyright (C) 2018 Netsia
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+
+
+package org.onap.osam.api.service;
+
+import org.onap.osam.model.dao.AccessPod;
+
+/**
+ * Created by cemturker on 26.09.2018.
+ */
+public interface AccessPodService extends AbstractStorageService<Long, AccessPod>{
+    AccessPod findByPnfId(String pnfId);
+    void removeByPnfId(String pnfId);
+}
diff --git a/osam-core-framework/api/src/main/java/org/onap/osam/api/service/AlarmService.java b/osam-core-framework/api/src/main/java/org/onap/osam/api/service/AlarmService.java
new file mode 100644
index 0000000..5fd8468
--- /dev/null
+++ b/osam-core-framework/api/src/main/java/org/onap/osam/api/service/AlarmService.java
@@ -0,0 +1,43 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * OSAM Core
+ * ================================================================================
+ * Copyright (C) 2018 Netsia
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+
+
+package org.onap.osam.api.service;
+
+import org.onap.osam.model.dao.AlarmsAndEvents;
+import org.onap.osam.model.dao.ActiveAlarmsAndEvents;
+import org.onap.osam.model.dao.HistoricalAlarmsAndEvents;
+
+import java.util.Date;
+import java.util.List;
+
+/**
+ *  basic methods belongs to Active Alarms
+ */
+public interface AlarmService{
+
+    List<ActiveAlarmsAndEvents> getActiveAlarmsAndEventsByDate(Date startDate, Date endDate);
+
+    List<HistoricalAlarmsAndEvents> getHistoricalAlarmsAndEventsByDate(Date startDate, Date endDate);
+
+    void addOrUpdate(AlarmsAndEvents alarmsAndEvents);
+
+}
diff --git a/osam-core-framework/api/src/main/java/org/onap/osam/api/service/BroadBandService.java b/osam-core-framework/api/src/main/java/org/onap/osam/api/service/BroadBandService.java
new file mode 100644
index 0000000..7ccaea8
--- /dev/null
+++ b/osam-core-framework/api/src/main/java/org/onap/osam/api/service/BroadBandService.java
@@ -0,0 +1,111 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * OSAM Core
+ * ================================================================================
+ * Copyright (C) 2018 Netsia
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+
+
+package org.onap.osam.api.service;
+
+import org.onap.osam.model.dao.Service;
+import org.onap.osam.model.dao.SpeedProfile;
+import org.onap.osam.model.dao.TechnologyProfile;
+
+import java.util.List;
+
+/**
+ * Created by cemturker on 18.09.2018.
+ */
+public interface BroadBandService {
+    /**
+     *
+     * @param speedProfile
+     */
+    SpeedProfile addSpeedProfile(SpeedProfile speedProfile);
+
+    /**
+     *
+     * @param technologyProfile
+     */
+    TechnologyProfile addTechnologyProfile(TechnologyProfile technologyProfile);
+
+    /**
+     *
+     * @param service
+     */
+    Service addService(Service service);
+
+    /**
+     *
+     * @param id
+     */
+    void removeSpeedProfile(Long id);
+
+    /**
+     *
+     * @param id
+     */
+    void removeTechnologyProfile(Long id);
+
+    /**
+     *
+     * @param id
+     */
+    void removeService(Long id);
+
+    /**
+     *
+     * @param id
+     * @return
+     */
+    SpeedProfile getSpeedProfile(Long id);
+
+    /**
+     *
+     * @param id
+     * @return
+     */
+    TechnologyProfile getTechnologyProfile(Long id);
+
+    /**
+     *
+     * @param id
+     * @return
+     */
+    Service getService(Long id);
+
+    /**
+     *
+     * @return
+     */
+    List<SpeedProfile> getSpeedProfiles();
+
+    /**
+     *
+     * @return
+     */
+    List<TechnologyProfile> getTechnologyProfiles();
+
+    /**
+     *
+     * @return
+     */
+    List<Service> getServices();
+
+}
+
diff --git a/osam-core-framework/api/src/main/java/org/onap/osam/api/service/DeviceService.java b/osam-core-framework/api/src/main/java/org/onap/osam/api/service/DeviceService.java
new file mode 100644
index 0000000..921bf66
--- /dev/null
+++ b/osam-core-framework/api/src/main/java/org/onap/osam/api/service/DeviceService.java
@@ -0,0 +1,187 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * OSAM Core
+ * ================================================================================
+ * Copyright (C) 2018 Netsia
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+
+
+package org.onap.osam.api.service;
+
+import org.onap.osam.model.dao.Chassis;
+import org.onap.osam.model.dao.OLTPort;
+import org.onap.osam.model.dao.OLTSlot;
+import org.onap.osam.model.dao.ONTDevice;
+
+import java.util.List;
+
+/**
+ * Created by Zafer Kaban on 18.09.2018.
+ */
+public interface DeviceService {
+
+     enum OntProvisioningType {
+        PREPROVISION,
+        FULL,
+        PROVISION
+    }
+
+
+/*
+Chassis Related Functionality
+---------------------------------------------------------------------------------------
+*/
+
+    /**
+     *
+     * @param chassis
+     */
+    Chassis addChassis(Chassis chassis);
+
+    /**
+     *
+     * @param id
+     */
+    void deleteChassis(Long id);
+
+    /**
+     *
+     * @param clli
+     */
+    public void deleteChassisByClli(String clli);
+
+    /**
+     *
+     * @param id
+     * @return Chassis
+     */
+    Chassis getChassisById(Long id);
+
+    /**
+     *
+     * @param clli
+     * @return Chassis
+     */
+    Chassis getChassisByClli(String clli);
+
+    /**
+     *
+     * @return Long
+     */
+    Long getChassisCount();
+
+    List<Chassis> getByPnfId(String pnfId);
+
+    List<Chassis> getAllChassis();
+
+/*
+oltSlot Related Functionality
+---------------------------------------------------------------------------------------
+*/
+
+    /**
+     *
+     *
+     * @param oltSlot
+     * @param chassis
+     */
+    OLTSlot addOLTSlot(OLTSlot oltSlot, Chassis chassis);
+
+    /**
+     *
+     * @param id
+     */
+    void deleteOLTSlot(Long id);
+
+    /**
+     *
+     * @param id
+     * @return oltSlot
+     */
+    OLTSlot getOLTSlotById(Long id);
+
+    /**
+     *
+     * @param serialNumber
+     * @return oltSlot
+     */
+    OLTSlot getOLTSlotBySerialNumber(String serialNumber);
+
+
+    /**
+     *
+     * @return all OLT slots
+     */
+    List<OLTSlot> getAllOLTSlots();
+
+/*
+OLTPort Related Functionality
+---------------------------------------------------------------------------------------
+*/
+
+    /**
+     *
+     * @param id
+     */
+    void deleteOLTPort(Long id);
+
+    /**
+     *
+     * @param id
+     * @return OLTPort
+     */
+    OLTPort getOLTPortById(Long id);
+
+/*
+ONTDevice Related Functionality
+---------------------------------------------------------------------------------------
+*/
+
+    /**
+     *
+     * @param ontDevice
+     * @param provisioningType
+     */
+    ONTDevice provisionONTDevice(ONTDevice ontDevice, OntProvisioningType provisioningType);
+
+    /**
+     *
+     * @param id
+     */
+    void deleteONTDevice(Long id);
+
+    /**
+     *
+     * @param id
+     * @return ONTDevice
+     */
+    ONTDevice getONTDeviceById(Long id);
+
+    /**
+     *
+     * @param serialNumber
+     * @return ONTDevice
+     */
+    ONTDevice getONTDeviceBySerialNumber(String serialNumber);
+
+    /**
+     *
+     * @return all ONT devices
+     */
+    List<ONTDevice> getAllONTDevices();
+
+}
diff --git a/osam-core-framework/api/src/main/java/org/onap/osam/api/service/PmConfigsService.java b/osam-core-framework/api/src/main/java/org/onap/osam/api/service/PmConfigsService.java
new file mode 100644
index 0000000..40c7dde
--- /dev/null
+++ b/osam-core-framework/api/src/main/java/org/onap/osam/api/service/PmConfigsService.java
@@ -0,0 +1,45 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * OSAM Core
+ * ================================================================================
+ * Copyright (C) 2018 Netsia
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+
+
+package org.onap.osam.api.service;
+
+import org.onap.osam.model.dao.PmConfigs;
+import org.onap.osam.model.dao.PmGroupConfig;
+import org.onap.osam.model.dao.PmConfig;
+
+import java.util.List;
+
+public interface PmConfigsService extends AbstractStorageService<Long,PmConfigs>{
+
+    List<PmConfig> getPmConfigByPmConfigsId(Long pmConfigsId);
+
+    List<PmConfig> getPmConfigByPmConfigGroupId(Long pmGroupConfigsId);
+
+    void addPmGroupConfig(PmConfig pmConfig);
+
+    void addPmGroupConfig(PmGroupConfig pmGroupConfig);
+
+    void removePmConfig(Long pmConfigId);
+
+    void removeGroupPmConfig(Long pmGroupConfigId);
+
+}
diff --git a/osam-core-framework/api/src/main/java/org/onap/osam/api/service/SubscriberService.java b/osam-core-framework/api/src/main/java/org/onap/osam/api/service/SubscriberService.java
new file mode 100644
index 0000000..f71be56
--- /dev/null
+++ b/osam-core-framework/api/src/main/java/org/onap/osam/api/service/SubscriberService.java
@@ -0,0 +1,32 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * OSAM Core
+ * ================================================================================
+ * Copyright (C) 2018 Netsia
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+
+
+package org.onap.osam.api.service;
+
+import org.onap.osam.model.dao.Subscriber;
+
+/**
+ * Created by cemturker on 18.09.2018.
+ */
+public interface SubscriberService extends AbstractStorageService<Long,Subscriber> {
+    Subscriber getBySubscriberIdentifier(String userIdentifier);
+}