An option is semantically equivalent to an alternativeĬombinedFragment where there is one operand with non-empty content and the second operand is empty. The InteractionOperatorKind opt designates that the CombinedFragment represents a choice of behavior whereĮither the (sole) operand happens or nothing happens. An implicit true guard is implied if the operand The chosen operand must have an explicit or implicit guardĮxpression that evaluates to true at this point in the interaction. Activity diagram di gunakan sebagai penjelelasan aktivitas program tanpa melihat koding atau tampilan. The InteractionOperatorKind alt designates that the CombinedFragment represents a choice of behavior. UML Diagrams Use-Case Diagram Statechart Diagram The point to be made is that the. opt and alt are two different operator types and here's how specification describes them: Object-Oriented Programming Design Program Design (UML Diagrams) What. In UML specification the meaning is described in section 17.12.15. ![]() alt may be used to describe two variants of payment: using credit card or wire money transfer. Opt is used to describe optional step in workflow.įor example, for online shop purchase sequence diagram you may use opt to describe how user can add gift wrapping if she wishes. Only one of the options will be executed. Alt is used to describe alternative scenarios of a workflow.
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