

Designing the System Structure › Design the User Interface Structure › Map User Tasks to a User Interface
Map User Tasks to a User Interface
The system structure is built using a prototype of the user tasks and sub-tasks.
Examine the opportunities and technical limitations of the products being used. In particular, decide how to subdivide the system into procedures by considering issues such as the following issues:
- A data maintenance task should be supported by one or more system procedures, depending on data integrity and other business rules. For more information about procedures, see the chapter “Designing the Procedure Logic.”
- Part of a user task, such as a look-up display, is a part of many user tasks, and so needs to be supported by a separate reusable procedure.
- Parts of the user task require different levels of security.
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