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Designing Portal Use Case Scenarios
100 Portal Server 6 2005Q1 • Deployment Planning Guide
Use case steps are written in an easy-to-understand structured narrative using the
vocabulary of the domain.
Use case scenarios are an instance of a use case, representing a single path through
the use case. Thus, there may be a scenario for the main flow through the use case
and other scenarios for each possible variation of flow through the use case (for
example, representing each option).
Elements of Portal Use Cases
When developing use cases for your portal, keep the following elements in mind:
• Priority. Describes the priority, or ranking of the use case. For example, this
could range from High to Medium to Low.
• Context of use. Describes the setting or environment in which the use case
occurs.
• Scope. Describes the conditions and limits of the use case.
• Primary user. Describes what kind of user this applies to, for example, an end
user or an administrator.
• Special requirements. Describes any other conditions that apply.
•Stakeholders. Describes the people who have a "vested interest" in how a
product decision is made or carried out.
• Precondition. Describes the prerequisites that must be met for the use case to
occur.
• Minimal guarantees. Describes the minimum that must occur if the use case is
not successfully completed.
• Success guarantees. Describes what happens if the use case is successfully
completed.
• Trigger. Describes the particular item in the system that causes the event to
occur.
• Description. Provides a step-by-step account of the use case, from start to
finish.