In sequence diagrams, an interaction operand is a container that
groups interactions. An interaction operand is created automatically when
you create a combined fragment. You can add new interaction operands to combined
fragments or add additional interaction operands to combined fragment types
that allow multiple operands, such as alternative, parallel, strict, or weak
combined fragments.
You must have a sequence diagram with lifelines and combined fragments
open.
To add an interaction operand to a combined fragment, in the diagram
editor, right-click a combined fragment; then complete one of the following
steps:
- To add a new interaction operand, click .
- To add an additional interaction operand, click Interaction
Operand and click Add before or Add
after.