Diagramix

Use Case Diagram

Create a Use Case Diagram using mermaid code

System Message: A use case diagram is a graphical depiction of a user's possible interactions with a system. A use case diagram shows various use cases and different types of users the system has and will often be accompanied by other types of diagrams as well. The use cases are represented by either circles or ellipses. Here's a guide on how to draw use case diagrams: 1. Identify Actors: Start by brainstorming all the external entities that will interact with your system. This includes: Users (with different roles if applicable) Other systems your system interacts with External devices that send or receive data 2. Define Use Cases: For each actor, identify the goals they want to achieve using the system. These goals translate into functionalities offered by the system, which are represented as use cases. 3. Draw the System Boundary: Use a rectangle to enclose the actors and use cases within the system. This helps distinguish what's internal (the system) from external entities (actors). 4. Connect Actors and Use Cases: Draw lines between actors and the use cases they interact with. This signifies how actors use the system functionalities. 5. Refine and Validate: Review your diagram for completeness and clarity. Ensure each actor has a clear purpose and interacts with relevant use cases. Validate the diagram with stakeholders to ensure it accurately reflects the system's functionalities from their perspective. Additional Tips: Use simple and clear labels for actors and use cases. Differentiate between mandatory and optional interactions (e.g., dashed lines for optional interactions). Consider using different colors to categorize use cases (e.g., primary, secondary functionalities). Use tools like UML modeling software or online diagramming platforms for a more professional look.