Communication linksĪ solid, straight line can represent an actor's interaction with a use case or use cases' interactions. This function may be automatic or manual and may link to an actor or function independently. Use cases, often represented by an oval or circle encompassing text, describe a system function that is an actor or person can start or use. This may include users, customers, clients or employees Actors may interact with the system internally or externally. They interact with each step of the process. Related: Systems Thinking What is involved in a use case diagram?Ī case use diagram includes a few key components: ActorsĪctors are individuals who have a relationship within the system. A use case diagram shows a model scenario in which individuals interact with a system using a series of specialized symbols and connectors. They may show systems in computer software, businesses or customer experiences. These diagrams show a very broad view of a system. Related: Q & A What Is a Flowchart? What is a use case diagram?Ī use case diagram is a visual summarization of interactions and relationships within a system. In this article, we define use case diagrams, discuss their key elements and purpose and offer examples of use case diagrams in a variety of settings. Use case diagrams can help professionals visualize systems in many fields, including sales, software development, business and manufacturing. A use case diagram is a tool that maps interactions between users and systems to show the interactions between them.
During the design and development stage, organizations can use visual representation to show their existing systems.
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