On sequence diagrams, this numbering is somewhat redundant because the ordering of the messages always is determined by the order, from top to bottom, in which they appear on the diagram.

The sequence diagram in Figure A didn’t include a TimePrinter object. In fact, it did contain a TimePrinter, but it was in the form of the TimeChangeListener interface.

Inside VSTS. The Joy of Sequence Diagrams. Rosario features a new and improved kind of class diagram. Jeff dives into the details. By Jeff Levinson ; 05/07/2008; In my last column, I covered some of ...