15 Top Level Use Case Diagram. Top level use cases should always provide a complete function required by an actor. For use case diagrams that capture decisions for developers, there should be enough detail that deeper design or programming can continue.
Or it might be a large distributed suite of. Put the primary actor at the top, as in the following example. Uml is the modeling toolkit that you can use to build your.
When a stakeholder asks you for a top level diagram, they typically want to see the the entire system represented on a single page potentially with references to neighboring find out first — who are the stakeholders of the diagram.
15 Top Level Use Case Diagram. A use case diagram at its simplest is a representation of a user's interaction with the system that shows the relationship between the user and the different use cases in which the user is involved. Both beginners and intermediate uml diagrammers will find all the necessary training and examples on. It might be a small software component, whose actors are just other software components; Cockburn distinguishes three main levels of use cases, being summary, user goal and subfunction.