Class Library or Reference Data Library (RDL)
- Last UpdatedMay 10, 2023
- 1 minute read
An Object can only be classified using a pre-defined Class from the Class Library, also known as the Reference Data Library (RDL). The AIM Workhub comes supplied with a Class Library of classes that have been found useful in practice. However, it is not necessary to use the Standard Class Library as supplied and the user can add classes or create a whole custom Class Library to suit the job in hand.
When customizing a Class Library, you must be aware of the following restrictions:
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A number of system classes are defined as subclasses of the AIM Workhub SYSTEM class and they cannot be deleted.
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The upper levels of the class hierarchy are system-defined and the functionality of the AIM Workhub depends on this basic framework known as the Upper Ontology.
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Any new Class must directly or indirectly be a subclass of one of these built-in classes.
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You cannot delete a Class that is currently in use as an Essential or Incidental classification of any Object. All such Objects must be deleted before the Class can be deleted.