Create the Business Application diagram (4ba)

Select File>>New, Design, Application Modeling, Business Application Diagram (4ba) to create a blank diagram.
Right-click on the blank diagram and select New >> Program. This creates a Program entity on the diagram.
Right-click on the blank diagram and select New >> CRUD Form. This creates a Form entity on the diagram.
Right-click the Program entity, and select New Relation. Click and drag from the Program to the Form entity to create a relation from program to form.

Figure 1. Defining a relationship
Save and name the BA Diagram (4ba) to your file structure and to the Application node in the project.