- Participation constraints
- Existence of an entity dependant upon
- being related to another entity
- via relationship type (left hand/design)
- Total (")/Existence
dependency (double line) - Every student must be in a faculty
- For every entity in the total set of students
- Partial ($) (single line)
- Some students are student_representatives
- There exists some entity(s) within the set of all…
In Focus
1.4.10. Participation