Creating the Data Model
The Data Orchestration Engine (DOE) uses the Data Object Builder to model a data object. The data object is then stored in the form of structures in the Data Object Repository, which lies in the ABAP stack of the DOE. As a developer of mobile applications, you can then import the stored data objects to create the client data objects in your project.
You have created an empty Mobile Service Component and defined its dependencies to other components.
More information: Defining Dependencies Between Components
To create client data objects, you import data objects from the DOE and either use them as defined or deselect nodes and node attributes to define projections of them.
More information: Creating Client Data Objects

If the data objects in the DOE have changed, you need to reimport their metadata.
More information: Reimporting Client Data Objects
More information: Creating Data Structures
More information: Including Value Help