Tool Mentor: Finding Actors and Use Cases Using Rational XDE Developer - .NET Edition

Purpose

This section provides links to additional information related to this tool mentor.

• Find Actors and Use Cases

The steps in this tool mentor match those in the activity. Links to topics in the Rational XDE™ online Help are marked with .

Overview

This tool mentor assumes that a Use-Case Model has already been created in accordance with the XDE Model Structure Guidelines.

The following steps are performed in this tool mentor:

• Find Actors
• Find Use Cases
• Describe How Actors and Use Cases Interact
• Package Use Cases and Actors
• Present the Use-Case Model in Use-Case Diagrams
• Develop a Survey of the Use-Case Model
• Evaluate the Results

Find Actors

After finding the actors, record your results as follows:

1. Open the Use-Case Model.
2. Navigate to a package where actors are to be captured. See Rational XDE Model Structure Guidelines.
3. Create a diagram to capture actors, selecting use-case diagram for the diagram type. See in the Rational XDE online Help.
4. Add actors to the diagram. See .
5. Annotate each actor with a brief description. See .

For more information, refer to in the Rational XDE online Help.

Find Use Cases

After finding use cases, record your results as follows:

1. Navigate to a package in which use cases are to be captured. See Rational XDE Model Structure Guidelines.
2. Create a use-case diagram to capture use cases. See in the Rational XDE online Help.
3. Add use cases to the diagram. See .
4. Provide a brief description and the outlined flow of events. This can be initially annotated on the model element. (See .) Alternatively, you can use the RUP-provided template for Artifact: Use Case and attach it to the use case in the model. See .

Describe How Actors and Use Cases Interact

Describe the interaction between actors and use cases by following these steps:

1. Add previously created actors to the use-case diagram containing the use cases. See .
2. Add communicates associations between actors and use cases. (See .) If an association is navigable in only one direction, select a directed association, click the consumer shape first, and then click the supplier shape.
3. Optionally, describe the association. See .
4. Optionally, add multiplicity of a role. See .

Package Use Cases and Actors

Organize actors and use cases in packages.

Refer to in the Rational XDE online Help.

Present the Use-Case Model in Use-Case Diagrams

For the purposes of this tool mentor, it is assumed that diagrams have been created as actors and use cases are identified. See earlier steps for guidance on use-case diagramming using Rational XDE.

Develop a Survey of the Use-Case Model

Rational XDE provides Use-Case Model reports. It might be helpful to publish the model to HTML format. Also note that diagrams can be copied from Rational XDE to Microsoft Word and other programs.

For more information, refer to .

Evaluate the Results

Reports (see previous step) and published models can be useful for reviewing the model.

For more information, refer to .

Rational Unified Process