July 2013
Intermediate to advanced
440 pages
9h 41m
English
The composite chart of Figure 3.1 is repeated in Figure 4.1 with the process model highlighted. As we summarized in the last chapter, and can see from Figure 4.1, this model consists of data flow diagrams and process specifications. Its purpose is to specify the information processing requirements of the system.

Figure 4.1. The process structure (highlighted).
Context diagrams are just special cases of data and control flow diagrams, but they serve such a special and important role in the model that they merit special attention. They identify the external entities (typically, other systems, ...
Read now
Unlock full access