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Ryan 2023-06-14 14:42:28 +08:00
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@ -972,10 +972,14 @@
- Two constraints that may apply to a #flashcard
id:: 64896085-645b-408f-b17a-109b6cd82aeb
specialization/generalization:
- participation constraints
- participation constraints :-> Determines whether every member in superclass
must participate as a member of a subclass.
- May be {{c1 mandatory}} or {{c1 optional}}. #flashcard
id:: 648960d0-ae7f-4452-a1b9-cab8a9b13443
- disjoint constraints
- disjoint constraints :-> Describes relationship between members of the
subclasses and indicates whether member of a
superclass can be a member of one, or more than
one, subclass.
- Superclass / Subclass
- Superclass :-> An entity type that includes one or more distinct
id:: 64895f2f-b868-46ec-9d80-7079eaf3197d