Creating a Use Case Diagram
A use case diagram is used to describe the interactions between the organization actors and the system, for each of the planned use cases.
A use case is a series of actions leading to an observable result for a given actor. Scenarios illustrate use cases for example.These use cases are grouped into packages representing the system boundaries.
A package partitions the domain studied and the associated work. It enables grouping of various elements, in particular use cases and classes. A package can also contain other packages. Packages are interconnected through contractual reports defining their interface.You can create a use case diagram from a package. However, for complex systems, you can create this type of diagram from a use case in order to detail the latter.
With HOPEX Application Design , you can also create a use case diagram for the application environment of a project. See "Creating a Use Case Diagram for an Application Environment:".
Creating a Package
PrerequisiteÂ
You must first define a work environment for a project in progress. See "The Current Design Project pane", page 21.
To create a package with HOPEX Application Design :
1. Click the navigation menu, then Current Design Project.
2. In the navigation pane, select Project Scope.
3. In the edit area, click Packages.
4. In the edit area, click New.
The Creation of Package dialog box appears.
5. Enter its Name.
6. Indicate the library and owner package if necessary.
The default library is used to store an object if there is no current library at the time of its creation.7. Click OK.
The package is created and added to the list of packages.
Creating the Use Case Diagram of a Package
To create a use case diagram:
1. Click the icon of the package concerned and select New > Use Case Diagram.
The diagram opens in the edit window. The frame of the package is positioned within the drawing.
See also Use Case Diagram Elements.