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  2. Computer case - Wikipedia

    en.wikipedia.org/wiki/Computer_case

    The fans are also at the rear and front. The power supply is on the bottom rear. A computer case, also known as a computer chassis, is the enclosure that contains most of the hardware of a personal computer. The components housed inside the case (such as the CPU, motherboard, memory, mass storage devices, power supply unit and various expansion ...

  3. Computer hardware - Wikipedia

    en.wikipedia.org/wiki/Computer_hardware

    The case is also part of the system to control electromagnetic interference radiated by the computer and protects internal parts from electrostatic discharge. Large tower cases provide space for multiple disk drives or other peripherals and usually stand on the floor, while desktop cases provide less expansion room. All-in-one style designs ...

  4. Systems analysis - Wikipedia

    en.wikipedia.org/wiki/Systems_analysis

    t. e. Systems analysis is "the process of studying a procedure or business to identify its goal and purposes and create systems and procedures that will efficiently achieve them". Another view sees systems analysis as a problem-solving technique that breaks a system down into its component pieces and analyses how well those parts work and ...

  5. Use case - Wikipedia

    en.wikipedia.org/wiki/Use_case

    Outlines. v. t. e. In software and systems engineering, the phrase use case is a polyseme with two senses : A usage scenario for a piece of software; often used in the plural to suggest situations where a piece of software may be useful. A potential scenario in which a system receives an external request (such as user input) and responds to it.

  6. Systems theory - Wikipedia

    en.wikipedia.org/wiki/Systems_theory

    The amount of interaction between parts of systems higher in the hierarchy and parts of the system lower in the hierarchy is reduced. If all the parts of a system are tightly coupled (interact with one another a lot) then the system cannot be decomposed into different systems. The amount of coupling between parts of a system may differ ...

  7. System context diagram - Wikipedia

    en.wikipedia.org/wiki/System_context_diagram

    Example of a system context diagram. [ 1] A system context diagram in engineering is a diagram that defines the boundary between the system, or part of a system, and its environment, showing the entities that interact with it. [ 2] This diagram is a high level view of a system. It is similar to a block diagram .

  8. Computer-aided software engineering - Wikipedia

    en.wikipedia.org/wiki/Computer-aided_software...

    Computer-aided software engineering. Computer-aided software engineering ( CASE) is a domain of software tools used to design and implement applications. CASE tools are similar to and are partly inspired by computer-aided design (CAD) tools used for designing hardware products. CASE tools are intended to help develop high-quality, defect-free ...

  9. Systems development life cycle - Wikipedia

    en.wikipedia.org/wiki/Systems_development_life_cycle

    A systems development life cycle is composed of distinct work phases that are used by systems engineers and systems developers to deliver information systems.Like anything that is manufactured on an assembly line, an SDLC aims to produce high-quality systems that meet or exceed expectations, based on requirements, by delivering systems within scheduled time frames and cost estimates. [3]