What is the notation of a basic action in an activity diagram?

What is the notation of a basic action in an activity diagram?

• A. Round-angle
• B. Rounded rectangle
• C. Rectangle
• D. Oval

Answer: (A)

In an activity diagram, a basic action is shown as a round-angle shape, essentially a rectangle with rounded corners. This rounded-rectangle, or rounded-action node, is the standard way to depict an executable step in the workflow. The curved corners help distinguish actions from other diagram elements, like decisions or forks, which use different shapes, and from start or end symbols, which are circles or bullseyes. So the round-angle (rounded rectangle) specifically represents a basic action, not a plain rectangle or an oval. For example, the step “Submit Request” would be placed inside a rounded rectangle to indicate it’s an action to be performed.

In an activity diagram, a basic action is shown as a round-angle shape, essentially a rectangle with rounded corners. This rounded-rectangle, or rounded-action node, is the standard way to depict an executable step in the workflow. The curved corners help distinguish actions from other diagram elements, like decisions or forks, which use different shapes, and from start or end symbols, which are circles or bullseyes. So the round-angle (rounded rectangle) specifically represents a basic action, not a plain rectangle or an oval. For example, the step “Submit Request” would be placed inside a rounded rectangle to indicate it’s an action to be performed.