Information Resource Relationships

As mentioned earlier, a book may contain a photograph. It may also consist of chapters. In effect one Information Resource Definition is composed of one or more others. This is one kind of Information Resource Relationship—the fact that one Information Resource is in some way associated with others. As with any other relationship entity class, each Information Resource Relationship must be from one Information Resource Definition and to another Information Resource Definition.

This is portrayed in Figure 10-2. One sub-type of Information Resource Relationship is Information Structurethe fact that one Information Resource Instance is composed of at least one other Information Resource Instance. Another kind ...

Get Enterprise Model Patterns: Describing the World (UML Version) now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.