In sequence diagrams, an interaction operand is a container that
groups interaction fragments, such as messages, that runs if the guard condition
is true. An interaction operand is created automatically
when you create a combined fragment. You can add new interaction operands
to combined fragments that allow multiple operands, such as alternative, parallel,
strict, or weak combined fragments. You can also remove and reposition interaction
operands in a combined fragment to reflect changes in your system.
You must have a sequence diagram open that contains lifelines and
combined fragments.
To add, remove, or reposition interaction operands in a combined
fragment, complete one of the following steps:
Note: You can not remove the
last operand of a combined fragment.
- To add a new interaction operand, right-click a combined fragment;
then click .
- To remove an interaction operand, right-click one; then click .
- To reposition an interaction operand, right-click one; then click Interaction
Operand and click the appropriate menu item.
Tip: To create an interaction operand above or below
an interaction operand, select an operand and click or Add
after.