http://www.15926.org/publications/gener ... /index.htm
Summary:
This model is used to solve the problem of class revision.
The former solution for this was the template SuccessionOfInvolvementInActivity in ISO 15926-7 (the old and the new class are involved in a revision activity). This solution was seen as cumbersome as it was not clear what the "current" classes are that classify a possible individual without querying out all the successions. So we are looking for a more straightforward method.
How this method works:
The whole-life individual and its ur-class remain unchanged. The classification relationships that give the whole-life individual its aspects, through transitive inheritance of its temporal parts, are gathered in a set of EnumeratedSetOfClass. This EnumeratedSetOfClass is also related to the ur-class (semantically correct) so it can be found in one query. The EnumeratedSetOfClass is marked with the create date property (of Thing) giving the set a date. Old sets can be queried the same way, providing for history.
From the given example:
The "mySphere T-101" is made of 316 SS (the light-grey part). If the material of construction changes in the design (314 SS):
- The temporal part of the ArrangedIndividual will be terminated (given an end date).
- A new ClassOfArrangedIndividual instace is created, modeled as "314 SS" being a subClass of the ur-class of T-101.
- A new EnumeratedSetOfClass is created, given a date, which collects the other class instances of the temporal parts of "mySphere T-101" and the new temporal part.