HP Integrity NonStop J-Series - Manual (Page 244)

Sample Project-Tracking System
Identifying the Files to be Accessed by Each Application
6. "Event-revised"--an application that allows an employee to
revise information about a particular event
Identifying the Files to be Accessed by Each Application
Having identified the applications, make a rough sketch of the
screens that are to be displayed by each, using a box to
represent each file to be accessed by the application. In the
sketch of the PROJECT-ENTRY screen, for example, you would
include a box for the following files: "projects," "events," and
"employs."
Next, determine the kinds of operations that the application will
need to perform. Since a project manager using the
"project-entry" application might need to delete, insert, or
update information in the "projects" and "events" files, this
application requires the ability to perform all of these
operations. On the other hand, a project manager needs only to
read information from the "employs" file. Therefore, the
"project-entry" application requires only read access to this
file. If you need to limit the kinds of operations that an
application can perform on a particular file, include this
information in your rough sketch of the application's terminal
screen.
Figure 12-10 shows rough sketches of the screens for the project-
tracking system.
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