UML25 — Location: 18.1.3 Semantics Use Cases and Actors P. 685 - Variants are not defined

current text: “Each UseCase specifies some behavior, possibly including variants, that the subject can perform in collaboration with one or more Actors”.

[AC] I think the clause “possibly including variants” could and should be avoided, because: a) “variant” is not a term defined in the specification, and could be interpreted differently by different readers
b) it does not lead to a better explanation of what a behavior specification is.

However, the clause “possibly including variants” was also included in the 11-08-06 version

Agreed. “Possibly including variants” is not the language of a normative specification. The variation capabilities
(include, extend) are specified elsewhere