You can store your component model in either of two formats:
XMI (Ecore EMF) file
DB (OpenEdge database)
The default setting is XMI.
If you select XMI model storage, you can choose whether to use advanced features:
Advanced features disabled (default) - When you create components, you are not prompted to specify a model. All components are stored in a single model file named appModel.t4bl, located in the project root folder.
Advanced features enabled - When you create components, you specify one or more model files. You control the name and location of your models.
To set model storage options:
1. Select Window > Preferences.
2. In the left pane of the Preferences window, expand Progress OpenEdge and select Tools for Business Logic.
3. Select either XMI or DB in the Persistence area.
4. Click the Disable advanced wizard features check box to toggle advanced features off or on.
XMI (Ecore EMF) file