12 Facts About Use cases

Use cases case is a list of actions or event steps typically defining the interactions between a role and a system to achieve a goal.

In systems engineering, use cases are used at a higher level than within software engineering, often representing missions or stakeholder goals.

Use cases described how this technique was used at Ericsson to capture and specify requirements of a system using textual, structural, and visual modeling techniques to drive object oriented analysis and design.

In 1992 he co-authored the book Object-Oriented Software Engineering - A Use Case Driven Approach, which laid the foundation of the OOSE system engineering method and helped to popularize use cases for capturing functional requirements, especially in software development.

Use cases are a technique for capturing, modelling and specifying the requirements of a system.

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Template defined by Alistair Cockburn in his book Writing Effective Use Cases has been one of the most widely used writing styles of use cases.

Use cases's fully dressed use case template lists the following fields:.

Use cases case defines the interactions between external actors and the system under consideration to accomplish a goal.

In summary, specifying system requirements in use cases has these apparent benefits comparing with traditional or other approaches:.

Use cases constitute a powerful, user-centric tool for the software requirements specification process.

Use cases are often written in natural languages with structured templates.

Use cases should be authored in an iterative, incremental and evolutionary way.