Visio Tutorial Sequence Diagram. UML sequence diagrams are used to represent or model the flow of messages, events and actions between the objects or components of a system. Quick start with sequence diagrams and the various features.

I want to sketch a sequence diagram including callbacks.
How can I disable this behavior?
No Software and Database/Software section is available even from the More Shapes menu If you need only some diagram types, like the UML Sequence diagram, you can even find some online free tool that allows you, possibly writing. Microsoft Visio is a diagramming and vector graphics application and is part of the Microsoft Office family. Visio also enables you to create detailed organization charts, floor plans, pivot diagrams, etc.