description of a set of objects that share the same characteristics
Note 1 to entry: The characteristics may be embodied by the use of properties, operations, methods, relations, semantics, etc.
[SOURCE: ISO 22274:2013, 3.4, modified — Note 2 to entry has been added.]BS EN ISO 23386:2020
Note 2 to entry: Each class is a hierarchical element of a classification.