Sequence Diagram Alt. Hello bob how are you. A dotted vertical line can express a message and lifelines can be illustrated by a vertical bar in uml that spreads crosswise the base of a page.
Alt dispatch dispatch for each line item value 1000 else linking sequence diagrams 14. End or if there is sequence that is optional if without else. For example for online shop purchase sequence diagram you may use opt to describe how user can add gift wrapping if she wishes.
It is also known as an event diagram.
End see the example below. Opt describing text. For example for online shop purchase sequence diagram you may use opt to describe how user can add gift wrapping if she wishes. Uml uses alt frames to indicate alternative paths.
