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In software and systems engineering, a use case is a list of actions or event steps typically defining the interactions between a role (known in the Unified Modeling Language as an actor) and a system to achieve a goal. The actor can be a human or other external system. In systems engineering use cases are used at a higher level than within software engineering often representing missions or stakeholder goals. The detailed requirements may then be captured in the Systems Modeling Language (Sys ML) or as contractual statements. Use analysis is an important and valuable requirement analysis technique that has been widely used in modern software engineering since its formal introduction by Ivar Jacobson in 1992. Use case driven development is a key characteristic of many process models and frameworks such as ICONIX, the Unified Process (UP), the IBM Rational case Unified Process (RUP), and the Oracle Unified Method (OUM). With its inherent iterative, incremental and evolutionary nature, use case also fits well for agile development.
Computer Assisted Software Engineering (CASE)tools were developed to support the professional system developer and improve their productivity in the complex task of developing large information systems from a developer’s viewpoint, CASE tools provide support for modelling aspects of the system using a variety of notations and techniques: from diagrams to mathematics and text, producing prototype code, and even verifying the correctness of the system design. It is also sometimes tedious process of writing system documentation and keeping it up to date. Tools often allow the creation and management of a central repository of documents and other art which are useful both for communication within a development team, and for project management and decision tracking. Importantly, they improve the quality of the development processes by supporting, and to a large extent enforcing, a standard methodology and sound design principles.
The total area size is 250 Sq.m