The Sequence diagram is one of the Unified Modeling Language UML Behavioral diagrams that can be used to define the time ordered flow of messages between elements. The vertical axis representing time and the horizontal axis. Enterprise Architect Alternatives 25 Uml Modeling Tools And Similar Apps Alternativeto Learn from the experts all things development IT. . 13 rows Select the checkbox to set the default orientation of your Sequence diagrams to landscape. Tutorial using Enterprise Architect 12 to create an activity diagram. Ad Beginner Advanced Classes. They can be used. Select the checkbox to display sequence numbers against the Sequence Messages. The diagram has two dimensions. So if the diagram and its elements reside in different Packages a round-trip of the element Package through Version. Tutorial using Enterprise Architect 12 to create a sequence diagram- Lifelines- Communication between lifelines...