=== Base Template !ClassInvolvementSuccession ===

[[br]]!ClassInvolvementSuccession(a, b, c, d, e, f, g, h) means two classes a, b are involved in the same capacity in activity c. From time h, the involvement of a is succeeded by involvement of b, and approver g assigns status e to a’s involvement, status f to b’s involvement. 
[[br]]NOTE 1 In the phylosophy of ISO 15926 classes are eternal, e.g. can have no lifecycle. However some highly specialized classes can get to be “revised” (“to revise” is an Activity). This template is used to connect succeeding classes and qualify the succession with an activity, approver and time stamp. 
[[br]]
[[br]]Roles: 
[[br]]1 hasPredecessorClass Class 
[[br]]2 hasSuccessorClass Class 
[[br]]3 hasInvolverActivity Activity 
[[br]]4 hasInvolvementType !ClassOfInvolvementByReference 
[[br]]5 hasStatusOfPredecessor !ClassOfApprovalByStatus 
[[br]]6 hasStatusOfSuccessor !ClassOfApprovalByStatus 
[[br]]7 hasStatusApprover !PossibleIndividual 
[[br]]8 hasStartTime !RepresentationOfGregorianDateAndUtcTime 

Axiom: 
{{{
ClassInvolvementSuccession(x1, x2, x3, x4, x5, x6, x7, x8) <-> 
Class(x1) & 
Class(x2) & 
Activity(x3) & 
ClassOfInvolvementByReference(x4) & 
ClassOfApprovalByStatus(x5) & 
ClassOfApprovalByStatus(x6) & 
PossibleIndividual(x7) & 
RepresentationOfGregorianDateAndUtcTime(x8) & 
exists u1 exists u2 exists u3( 
BeginningOfTemporalPart(u1, x3, x8)& 
InvolvementByReferenceTriple(u2, x1, u1)& 
InvolvementByReferenceTriple(u3, x2, u1)& 
ClassificationTemplate(u2, x4)& 
ClassificationTemplate(u3, x4)& 
StatusApproval(u2, x5, x7)& 
StatusApproval(u3, x6, x7)& 
SuccessionOfInvolvementByReference(u2, u3)) .
}}}