Activity Characteristics

As we saw in Figure 7-1, both Activity Type and Activity have a larger number of explicit attributes that have not been seen anywhere else in this model. This has to do with placement of Activities in time, as well as the use of this entity class for deriving costs. (That will be described in more detail in Chapter 16, on the subject of manufacturing.) Because these are reasonably permanent and universal characteristics of activities, it is reasonable to include them as attributes. There are, however, other characteristics of activities, such as operating conditions and constraints, that are not so stable.

Examples might include difficulty rating for a surgical procedure, clean room indicator and ambient temperature ...

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.