* @defgroup CAPI_WIDGET_APP_MODULE Widget Application
* @brief Widget application API.
* @section CAPI_WIDGET_APP_MODULE_HEADER Required Header
- * \#include <widget_app.h>
- * \#include <widget_app_efl.h>
+ * \#include <widget_app.h>\n
+ * \#include <widget_app_efl.h>\n
*
* @section CAPI_WIDGET_APP_MODULE_OVERVIEW Overview
* The @ref CAPI_WIDGET_APP_MODULE API provides functions for handling Tizen widget application state changes or system events. Tizen widget application can be shown in the home screen.
* @image html widget_obj_lifecycle.png "Widget Instance States"
*
* @section CAPI_WIDGET_APP_MODULE_RELATED_FEATURES Related Features
- * This API is related with the following feature:
- * - http://tizen.org/feature/shell.appwidget
+ * This function is related with the following feature:
+ * - %http://tizen.org/feature/shell.appwidget\n
+ *
+ * It is recommended to design feature related codes in your application for reliability.\n
+ * You can check if a device supports the related features for this API by using @ref CAPI_SYSTEM_SYSTEM_INFO_MODULE, thereby controlling the procedure of your application.\n
+ * To ensure your application is only running on the device with specific features, please define the features in your manifest file using the manifest editor in the SDK.\n
+ * More details on featuring your application can be found from <a href="https://docs.tizen.org/application/tizen-studio/native-tools/manifest-text-editor#feature-element"><b>Feature Element</b>.</a>
*/