This UML Sequence Diagram for Desktop Assistance System depicts how a group of objects interact with one another in a process over time. It displays the messages exchanged between system participants and entities and the order in which they occur. Use this UML Sequence template or starter diagram, which includes the UML Sequence stencil, to create a sequence diagram. The sequence of events can be used to determine which objects and interactions are required to perform the functionality. Sequence diagrams are useful tools at the beginning of a project because they show the user what needs to happen in a step-by-step fashion.