To draw an actor in use case diagram, select Actor on the diagram toolbar and then click it on the diagram pane. Finally, name the newly created system when it is created. To create a system in use case diagram, select System on the diagram toolbar and then click it on the diagram pane. The Location field enables you to select a model to store the diagram.
#ONLINE USE CASE DIAGRAM GENERATOR HOW TO#
On this page, you will see how to draw use case diagrams with UML tools. You would typically develop use case diagrams in the early stages of a project and refer to them throughout the development process. You may use a single use case diagram to model a complex system or you may create many use case diagrams to model parts of a system. You can draw use case diagrams in Visual Paradigm or use the Event Flow Editor to document use case usage scenarios.Ī Use Case diagram illustrates and defines the context and requirements of an entire system or a core part of a system. A use case diagram is a UML diagram that enables you to model system functions (i.e., goals) and the actors that interact with those functions.