Co-Region Notation

Co-Region notation can be used as a short hand for parallel combined fragments. You can add this notation to a Sequence diagram using the 'Co-Region' submenu, which you display by right-clicking on a connector in a Sequence diagram and selecting the 'Co-Region' option. There are four sub-options available:

  • Start at head
  • End at head
  • Start at tail
  • End at tail