conflict
Most generally, a situation in which some potential ambiguity exists between different elements of a model. Depending on the case, there may be rules to resolve the conflict or the presence of the conflict may create an ill-formed model.
Semantics
Conflict is a situation of contradictory specifications, for example, when the same-named attribute or operation is inherited from more than one class, or when the same event enables more than one transition, or any similar situation in which the normal rules yield potentially contradictory results. Depending on the semantics for each kind of model element, a conflict may be resolved by a conflict resolution rule, it may be legal but yield a nondeterministic result, or it may indicate that ...
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