Start with one of SmartDraw's blank UML diagram templates or an included use case diagram example. An "extends" relationship indicates alternative options under a certain use case. For relationships among use cases, use arrows labeled either "uses" or "extends." A "uses" relationship indicates that one use case is needed by another in order to perform a task. Illustrate relationships between an actor and a use case with a simple line. Use our diagram editor to make Flowcharts, UML diagrams, ER diagrams, Network Diagrams, Mockups, floorplans and many more. State diagrams are also useful to demonstrate the different use cases for business purposes. Create UML State diagrams with Sketchboard’s online UML tool to document how an entity changes states as a response to different events. When one system is the actor of another system, label the actor system with the actor stereotype. State machine diagrams (also known as state diagrams) are behavioral UML diagrams. Label the ovals with verbs that represent the system's functions.Īctors are the users of a system. Start with one of SmartDraws blank UML diagram templates or an included use case diagram example.
Place actors outside the system's boundaries.ĭraw use cases using ovals. Basic Use Case Diagram Symbols and Notationsĭraw your system's boundaries using a rectangle that contains use cases. Use case diagrams specify how the system interacts with actors without worrying about the details of how that functionality is implemented. They provide a good high level analysis from outside the system. They also help identify any internal or external factors that may influence the system and should be taken into consideration. Creately diagrams can be exported and added to Word, PPT (powerpoint), Excel, Visio or any other document. You can edit this template and create your own diagram. Use case diagrams are valuable for visualizing the functional requirements of a system that will translate into design choices and development priorities. Use Creately’s easy online diagram editor to edit this diagram, collaborate with others and export results to multiple image formats. The "actors" are people or entities operating under defined roles within the system. In this context, a "system" is something being developed or operated, such as a web site. Use cases are a set of actions, services, and functions that the system needs to perform. Great for editing in vector tools or embedding on the web. Use case diagrams model the functionality of a system using actors and use cases. For when you want to come back and continue editing this diagram. You will see for yourself that it is everything we say it is, or perhaps more.Use Case Diagram What is a Use Case Diagram?Ī use case diagram is a dynamic or behavior diagram in UML. Just browse the Use Case Diagram examples below and click Open Diagram to open and edit. Connectors are sticked to shapes and never separate apart.Apply different formatting options (shape and lines, solid and gradient paint), 40+ connector types, RTF caption, font options, shadow effect, etcDraw your own diagrams with your own shapes.Visio drawing and stencil importEasily embed text, external images and web links to diagramPrint, export and share your work in different formats (PNG, JPG, SVG, GIF, PDF)Hundreds of diagram examples and diagram templates to help to start quicklyGoogle Drive Integration But don”t take our word for it Compatible with all web browsersEasy to use: Create and connect shapes with drag and drop.
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