Chapter 14
Generic Diagrams
A generic diagram is a picture for viewing an underlying model. I use the term generic diagram because it is a starting point for various kinds of diagrams such as data structure diagrams, data flow diagrams, state diagrams, and equipment flow diagrams.
Generic diagrams have a number of features.
- A diagram is a picture with underlying semantics.
- The user clicks through an icon to access semantic content from the background model.
- Lines connect icons and arrowheads indicate the direction of flow.
- Some diagrams restrict connections to discrete locations on icons. Other diagrams permit connections anywhere on an icon.
- An icon can expand into subdiagrams.
- A diagram can be rendered through different notations.
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