Activity Diagram

What is an Activity Diagram?

A (UML) Activity Diagram is like a flowchart or a data flow diagram in that it shows a series of actions or the flow of control in a system in a way that is easy to see.

There are a lot of business process diagrams that use activity diagrams.

They can also show the steps in a diagram called a use case diagram. Modeling activities can be done in order or at the same time.

When an activity diagram has a beginning and an ending, it will show how things went from there to there (a final state).

You can make an activity by connecting and putting together different activity states.

In most cases, a dark circle with an arrow that points to the next state is the starting point.

The next state, which is usually a rectangle with rounded corners, usually marks the next state.

All action flows are shown with arrows that show how they move from one state to another.