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What types of integrity may be displayed in an object-oriented data model.

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  • Class-class integrity – A super class should not be deleted until all associated subclasses have been deleted.
  • Class-object integrity – A class should not be deleted until all associated classes have been deleted.
  • Domain integrity – Attributes are defined on pre-established classes, user classes or sets of object identifiers.
  • Referential integrity – Same as for relational model but with classes related to classes.
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