 SOFTWARE IN PRACTICE |
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Definition |
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Design View
A complex system that works is invariably found to have evolved from a simple system that works. A design view is a means of organising design information. It expresses a design in terms of a set of design entity(s) (refer Figure 1). A complete design describes all design entities and their attributes. In contrast a design view looks at:
Figure 1 Relationship of design views to design entities
Organising information into design views is important for the following reasons:
Example: A decomposition description is an example of a design view. The decomposition description in Figure 2 expresses the design in terms of a hierarchy using the design entities "system", "sub-system", "module" and "routine". Figure 2 A design view expressed as a decomposition description
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