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  2. Application lifecycle management - Wikipedia

    en.wikipedia.org/wiki/Application_lifecycle...

    Application lifecycle management (ALM) is the product lifecycle management (governance, development, and maintenance) of computer programs. It encompasses requirements management, software architecture, computer programming, software testing, software maintenance, change management, continuous integration, project management, and release ...

  3. Software maintenance - Wikipedia

    en.wikipedia.org/wiki/Software_maintenance

    In the early 1970s, companies began to separate out software maintenance with its own team of engineers to free up software development teams from support tasks. [1] In 1972, R. G. Canning published "The Maintenance 'Iceberg '", in which he contended that software maintenance was an extension of software development with an additional input: the existing system. [1]

  4. 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]

  5. Lean IT - Wikipedia

    en.wikipedia.org/wiki/Lean_IT

    Deployment of lean IT has been predominantly limited to application development and maintenance (ADM). This focus reflects the cost of ADM. [8] Despite a trend towards increased ADM outsourcing to lower-wage economies, [38] the cost of developing and maintaining applications can still consume more than half of the total IT budget. [3]

  6. Software development process - Wikipedia

    en.wikipedia.org/wiki/Software_development_process

    The basic principles of rapid application development are: [1] Key objective is for fast development and delivery of a high-quality system at a relatively low investment cost. Attempts to reduce inherent project risk by breaking a project into smaller segments and providing more ease of change during the development process.

  7. V-model - Wikipedia

    en.wikipedia.org/wiki/V-Model

    Reduction of total cost over the entire project and system life cycle: The effort for the development, production, operation and maintenance of a system can be calculated, estimated and controlled in a transparent manner by applying a standardized process model. The results obtained are uniform and easily retraced.

  8. Software evolution - Wikipedia

    en.wikipedia.org/wiki/Software_evolution

    Software evolution is the continual development of a piece of software after its initial release to address changing stakeholder and/or market requirements. Software evolution is important because organizations invest large amounts of money in their software and are completely dependent on this software.

  9. Operating expense - Wikipedia

    en.wikipedia.org/wiki/Operating_expense

    Everything else is a fixed cost, including labour (unless there is a regular and significant chance that workers will not work a full-time week when they report on their first day). In a real estate context, operating expenses include costs associated with the operation and maintenance of an income-producing property. Operating expenses include:

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