UML25 — Location: 17.2.3 Semantics Interaction Fragments p 607

Title: Reference to “InteractionOperator” should instead say “InteractionOperand”
Description:
current text
An InteractionFragment may either be contained directly in an enclosing Interaction, or may be contained within an InteractionOperator of a CombinedFragment,

Discussion:
In that sentence, “InteractionOperator” should be changed to “InteractionOperand.” The InteractionOperand metaclass has an association end “fragment : InteractionFragment.” An interaction operator, on the other hand, is simply an attribute of a combined fragment; it has no association with an interaction fragment.

Proposed Resolution:
Change “InteractionOperator” to “InteractionOperand” in that sentence.

In that sentence, “InteractionOperator” should be changed to “InteractionOperand.” The InteractionOperand
metaclass has an association end “fragment : InteractionFragment.” An interaction operator, on the other
hand, is simply an attribute of a combined fragment; it has no association with an interaction fragment.
Change “InteractionOperator” to “InteractionOperand” in that sentence.