In Unified Modeling Language (UML) sequence diagrams, an interaction operand is a container that groups interactions. 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 .
Parent topic: Developing combined fragments
Related concepts
Combined fragments
Interaction operands
Related tasks
Creating combined fragments
Adding lifelines to combined fragments
Removing covered lifelines from combined fragments
Removing interaction operands from combined fragments
Moving interaction operands within combined fragments
Resizing interaction fragments
Adding guard conditions to interaction operands