when people draw UML Sequence diagrams and when people draw

Question

please discuss here with example scenario like when people draw UML Sequence diagrams and when people draw UML Activity diagrams. thanks

Anil Kumar · Answer

Sequence diagram basically shows the collaboration between objects with a single use case. It reveals the behavior of several objects with describing their precise definition. On the other hand Activity diagram shows the process flow of the business system similar to flow charts and DFDs..