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UML (Unified Modeling Language)

UML (Unified Modeling Language).

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UML (Unified Modeling Language)

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  1. UML (Unified Modeling Language)

  2. UML is used to model (i.e., represent) the system being built. Taken in total, theUML model that you build will represent, to a certain level of fidelity, the realsystem that will be constructed. However, it is impossible to capture all the subtledetails of a complex software system in just one large diagram. The UML hasnumerous types of diagrams, each providing a certain view of your system. One must understand both the structure and thefunction of the objects involved. One must understand the taxonomic structure ofthe class objects, the inheritance mechanisms used, the individual behaviors ofobjects, and the dynamic behavior of the system as a whole. The problem issomewhat analogous to that of viewing a sports event such as tennis or a footballgame. Many different camera angles are required to provide an understanding ofthe action taking place. Each camera reveals particular aspects of the action thatcould not be conveyed by one camera alone” .

  3. UML Diagrams

  4. Conceptual, Logical and Physical Models The models of your system may present various levels of detail as your systemdevelopment progresses and matures over time. The conceptual model capturesthe system in terms of the domain entities that exist (or will exist) and their associationwith other such entities of your system. The conceptual level of modelingis performed using the terminology of your business domain and should be technology-agnostic. The logical view of a system takes the concepts created in theconceptual model and establishes the existence and meaning of the key abstractionsand mechanisms that will determine the system’s architecture and overalldesign. The physical model of a system describes the concrete software and hardwarecomposition of the system’s implementation. Obviously, the physical model is technology-specific.

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