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Use cases provide a high level view of the system. They capture to a certain extent system structures. Use case describe sequences of actions a system performs that yield an observable result of value to a particular actor. Sequence of actions: set of functions, algorithmic procedures, internal processes, etc. System performs: system ...
The Use-Case Foundation document by Ivar Jacobson and Alistair Cockburn presents a set of principles and concepts that underlie all successful applications of use cases including Use-Case 3.0. Use-Case 3.0 extends the foundation adding the concept of the Use-Case Slice; a foundational element of Use-Case 2.0 and this update. Underlying Principles
What is a use case? How do we describe use cases? actors - something with a behavior or role, e.g., a person, another system, organization. use case - a collection of related success and failure scenarios, describing actors using the system to support a goal. What is an Actor?
Use cases as textual visual modeling techniques have become a key construct and the foundation of the most popular de facto standard technique for performing software requirements analysis and specification. This paper describes use cases in terms of a recently proposed model: the thinging machine (TM) model.
Defines control logic (order between events) and transactions within a use case. Changes little if the internal structure or behavior of the entity classes changes. Assign all use case steps to the analysis classes. ... Uc description... ... Diagram Scenarios vs Flows vs Use Case? May use the Key Abstractions diagram as a starting point.
In this paper, we present an evaluation method called Use Case Evaluation (UCE) tailored for usability evaluation based on use cases. Our aim is to facilitate identification of usability problems at the point in the development process where the first key use cases are described.
Use cases describe business processes and requirements in a textual descriptive form. A use case usually represents a user-recognizable “end-to-end” process rather than an individual step or activity within a process (e.g., “rent a video” instead of “pay for video rental”).
