diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/Credential.java b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/Credential.java
new file mode 100644
index 00000000000..1cb482ffe11
--- /dev/null
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/Credential.java
@@ -0,0 +1,44 @@
+/*
+ *
+ *  Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ *  WSO2 Inc. licenses this file to you 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.wso2.carbon.device.mgt.common;
+
+/**
+ * DTO of the consumer key and secret
+ */
+public class Credential {
+	String consumerKey;
+	String consumerSecret;
+
+	public String getConsumerKey() {
+		return consumerKey;
+	}
+
+	public void setConsumerKey(String consumerKey) {
+		this.consumerKey = consumerKey;
+	}
+
+	public String getConsumerSecret() {
+		return consumerSecret;
+	}
+
+	public void setConsumerSecret(String consumerSecret) {
+		this.consumerSecret = consumerSecret;
+	}
+
+}
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/Platform.java b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/Platform.java
new file mode 100644
index 00000000000..b911702ac5f
--- /dev/null
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/Platform.java
@@ -0,0 +1,24 @@
+/*
+ *
+ *  Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ *  WSO2 Inc. licenses this file to you 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.wso2.carbon.device.mgt.common;
+
+public enum Platform {
+    ANDROID, IOS, WINDOWS;
+}
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/app/mgt/Application.java b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/app/mgt/Application.java
new file mode 100644
index 00000000000..c6b27063cab
--- /dev/null
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/app/mgt/Application.java
@@ -0,0 +1,87 @@
+/*
+ *
+ *  Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ *  WSO2 Inc. licenses this file to you 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.wso2.carbon.device.mgt.common.app.mgt;
+
+import org.wso2.carbon.device.mgt.common.DeviceIdentifier;
+import org.wso2.carbon.device.mgt.common.Platform;
+
+import java.util.List;
+
+public class Application {
+
+    private String applicationName;
+    private String appId;
+    private String locationUrl;
+    private String imageUrl;
+    private String version;
+    private String appType;
+
+    public String getAppType() {
+        return appType;
+    }
+
+    public void setAppType(String appType) {
+        this.appType = appType;
+    }
+
+    public String getApplicationName() {
+        return applicationName;
+    }
+
+    public void setApplicationName(String applicationName) {
+        this.applicationName = applicationName;
+    }
+
+
+    public String getAppId() {
+        return appId;
+    }
+
+    public void setAppId(String appId) {
+        this.appId = appId;
+    }
+
+
+    public String getLocationUrl() {
+        return locationUrl;
+    }
+
+    public void setLocationUrl(String locationUrl) {
+        this.locationUrl = locationUrl;
+    }
+
+
+    public String getImageUrl() {
+        return imageUrl;
+    }
+
+    public void setImageUrl(String imageUrl) {
+        this.imageUrl = imageUrl;
+    }
+
+    public String getVersion() {
+        return version;
+    }
+
+    public void setVersion(String version) {
+        this.version = version;
+    }
+
+}
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/app/mgt/ApplicationWrapper.java b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/app/mgt/ApplicationWrapper.java
new file mode 100644
index 00000000000..1a4304522d6
--- /dev/null
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/app/mgt/ApplicationWrapper.java
@@ -0,0 +1,64 @@
+/*
+ *
+ *  Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ *  WSO2 Inc. licenses this file to you 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.wso2.carbon.device.mgt.common.app.mgt;
+
+import org.wso2.carbon.device.mgt.common.DeviceIdentifier;
+
+import java.util.List;
+
+public class ApplicationWrapper {
+
+    private List<String> userNameList;
+    private List<String> roleNameList;
+    private List<DeviceIdentifier> deviceIdentifiers;
+    private Application application;
+
+    public List<String> getUserNameList() {
+        return userNameList;
+    }
+
+    public void setUserNameList(List<String> userNameList) {
+        this.userNameList = userNameList;
+    }
+
+    public List<String> getRoleNameList() {
+        return roleNameList;
+    }
+
+    public void setRoleNameList(List<String> roleNameList) {
+        this.roleNameList = roleNameList;
+    }
+
+    public List<DeviceIdentifier> getDeviceIdentifiers() {
+        return deviceIdentifiers;
+    }
+
+    public void setDeviceIdentifiers(List<DeviceIdentifier> deviceIdentifiers) {
+        this.deviceIdentifiers = deviceIdentifiers;
+    }
+
+    public Application getApplication() {
+        return application;
+    }
+
+    public void setApplication(Application application) {
+        this.application = application;
+    }
+}
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/spi/AppManager.java b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/spi/AppManager.java
new file mode 100644
index 00000000000..148b6fb5dd5
--- /dev/null
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/spi/AppManager.java
@@ -0,0 +1,33 @@
+/*
+ *
+ *  Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ *  WSO2 Inc. licenses this file to you 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.wso2.carbon.device.mgt.common.spi;
+
+import org.wso2.carbon.device.mgt.common.DeviceIdentifier;
+import org.wso2.carbon.device.mgt.common.app.mgt.AppManagerConnectorException;
+import org.wso2.carbon.device.mgt.common.operation.mgt.Operation;
+
+import java.util.List;
+
+public interface AppManager {
+
+    void installApplication(Operation operation, List<DeviceIdentifier> deviceIdentifiers)
+            throws AppManagerConnectorException;
+
+}
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/spi/DeviceMgtService.java b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/spi/DeviceMgtService.java
new file mode 100644
index 00000000000..82b21e9630f
--- /dev/null
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/spi/DeviceMgtService.java
@@ -0,0 +1,24 @@
+/*
+ *
+ *  Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ *  WSO2 Inc. licenses this file to you 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.wso2.carbon.device.mgt.common.spi;
+
+public interface DeviceMgtService extends DeviceManager,AppManager {
+
+}