Usecase Diagrams
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What is Usecase Diagrams?
Usecase diagrams are a type of diagram that are used to model the interactions between the actors and the usecases of the system.
An actor is a person or a system that interacts with the system. Actors are represented by a rectangle with the name of the actor written inside it.
A usecase is a task that the system performs. Usecases are represented by an ellipse with the name of the usecase written inside it.
A usecase diagram is a diagram that shows the actors and the usecases of the system. The diagram is represented by a rectangle that contains the name of the system inside it. The actors are represented by rectangles and the usecases are represented by ellipses.
Free resources to learn Usecase Diagrams
More in stage 10: Common UML Diagrams
Usecase Diagrams: common questions
Can I learn Usecase Diagrams in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Usecase Diagrams in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Usecase Diagrams tutorial for beginners?
It is lesson 99 of 188 in the free Computer Science roadmap, in stage 10, Common UML Diagrams. If you are new to Computer Science, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.