This sample was created in ConceptDraw DIAGRAM diagramming and vector drawing software using the UML Use Case Diagram library of the Rapid UML Solution from the Software Development area of ConceptDraw Solution Park. In the structural approach, the analogue of the use case diagram is IDEF0 and DFD diagrams, use-work options (IDEF0) and processes (DFD), and actors - external entities (DFD). At the same time, the model does not reflect in any way how this set of actions will be implemented. In other words, each “use case” defines a certain set of actions performed by the system when interacting with an actor. In turn, the “use case” is a specification of the services (functions) that the system provides to the actor. In this case, an actor (acting person, actant, artist) is any object, subject, or system that interacts with a simulated system from the outside.
The essence of this diagram is as follows: the designed system is represented as a set of actors interacting with the system using the so-called “use cases”. When constructing a diagram, common notation elements can also be used: notes and extension mechanisms.
This diagram consists of actors, use cases and relationships between them. The use case diagram (behavior scenarios, precedents) is the initial conceptual representation of the system during its design and development.
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