Role of <Control Links>
<Control Links> exist to change field values of their aggregates (targets)
- Specify which field values to change in the target (via the fields of the <Control Link>)
- Specify how the values should change (via the fields of the <Control Link> and its selected <Expression>)
Consequences
- We can customize model instances
- We can have models with moving parts
- We can have geometry and features that change state
DRM Diagram, Sheets 16 - 17: see <Interface Template>, <Expression>, and related classes.