Chapter 4: Defining the Application

Goal

In this section, you view the application system components and their relationships in the Application Painter. You then add the third application program and screen and the program subschema.

The Application Painter lets you quickly:

Name the components of the working application: programs and their associated screens and data structures, reports that document the application, subschemas or PSBs that define the database records to the application definition, and macro library members that contain macro code for program use.
Define the component relationships: for example, which screens are associated with which programs, which data structures are global to the application and which are local to a specific program.
Specify the database and data communication environments where the application will run.

Procedure

Start this procedure where the last one ended -- in the APS Application Painter, where the APSAPPL application is defined.

Figure 4-1: APSAPPL Application Definition

To insert a blank line in the application definition, type i (ISPF Insert command) over the 000002 line number as follows: i00002. Press Enter. This command creates a blank line and positions the cursor on it.
Type the new program name, apsupd, the associated screen, apsu, and the associated subschema, apsupd, as shown in Figure 4-1.
Type io to indicate that the screen is for both input and output.
Press Enter twice.
Type s in the selection field to the left of the APSU screen.
Press Enter to transfer to the Screen Painter.

Checkpoint

You have completed the application definition. You are now ready to set your screen design options and paint the Parts Update screen in the APS Screen Painter.

Help

The Application Painter has an online help facility that you can select from the action bar, or access from the screen by pressing PF1.

Hints

After you define your application components and relationships, you typically use the Application Painter to transfer to other APS Painters, print reports, and generate, compile, and link your application entities.