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  2. Use case - Wikipedia

    en.wikipedia.org/wiki/Use_case

    One of the most powerful things about use cases resides in the formats of the use case templates, especially the main success scenario (basic flow) and the extension scenario fragments (extensions, exceptional and alternative flows). Analyzing a use case step by step from preconditions to postconditions, exploring and investigating every action ...

  3. Use case diagram - Wikipedia

    en.wikipedia.org/wiki/Use_case_diagram

    A use case diagram [1] is a graphical depiction of a user's possible interactions with a system. A use case diagram shows various use cases and different types of users the system has and will often be accompanied by other types of diagrams as well. The use cases are represented by either circles or ellipses. The actors are often shown as stick ...

  4. Use-case analysis - Wikipedia

    en.wikipedia.org/wiki/Use-case_analysis

    A use case analysis is the primary form for gathering usage requirements for a new software program or task to be completed. The primary goals of a use case analysis are: designing a system from the user's perspective, communicating system behavior in the user's terms, and specifying all externally visible behaviors.

  5. Sequence diagram - Wikipedia

    en.wikipedia.org/wiki/Sequence_diagram

    Sequence diagrams are sometimes called event diagrams or event scenarios. For a particular scenario of a use case, the diagrams show the events that external actors generate, their order, and possible inter-system events. [2] The diagram emphasizes events that cross the system boundary from actors to systems.

  6. 4+1 architectural view model - Wikipedia

    en.wikipedia.org/wiki/4+1_architectural_view_model

    Scenarios: The description of an architecture is illustrated using a small set of use cases, or scenarios, which become a fifth view. The scenarios describe sequences of interactions between objects and between processes. They are used to identify architectural elements and to illustrate and validate the architecture design.

  7. Class-responsibility-collaboration card - Wikipedia

    en.wikipedia.org/wiki/Class-responsibility...

    CRC cards are frequently employed during the design phase of system and software development to transition use-case descriptions into class diagrams, allowing a smoother transition with a greater overview and permitting developers to implement solutions with low binding and high cohesion. CRC cards are usually created from index cards.

  8. Use case survey - Wikipedia

    en.wikipedia.org/wiki/Use_case_survey

    A use case survey is a list of names and perhaps brief descriptions of use cases associated with a system, component, or other logical or physical entity. This artifact is short and inexpensive to produce, and possibly advantageous over similar software development tools, depending on the needs of the project and analyst.

  9. Use case points - Wikipedia

    en.wikipedia.org/wiki/Use_Case_Points

    Use case points (UCP or UCPs) is a software estimation technique used to forecast the software size for software development projects. UCP is used when the Unified Modeling Language (UML) and Rational Unified Process (RUP) methodologies are being used for the software design and development.