Tasks Performed During Design

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Tasks Performed During Design

Design requires you to perform several major tasks, each of which is described in detail in the Client Server Design Guide.

The tasks in the following table assume that you have already prepared for design by doing the following tasks:

Assembling a design team
Reviewing the results of previous phases of a life cycle
Establishing design standards

The order of the tasks in the table does not imply the only sequence in which you can perform the tasks. In the actual design work, it is common to perform many tasks concurrently. The following table lists the major tasks performed during design.

Task	Purpose
Choose an application style	Map the tasks of the users to a type of application: Graphical User Interface (GUI) Client/server Terminal based (block mode) Batch (Batch is only available on MVS)
Design the dialog	Specify the procedures and the dialog flows used to navigate the system.
Design the interface	Build the screens, windows, and dialogs (the external interface).
Design the procedure logic	Specify the logic for each procedure.
Design the data structure	Transform the logical data model into a physical representation of the database.

After completing the major tasks, you can complete the design by verifying with the application users the consistency and completeness of the design.