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Why Is the Systems Development Life Cycle Important?

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Why is the systems development life cycle important?

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Systems Development Life Cycle (SDLC) is a process that involves planning, creation, testing and deployment of an information system in information systems and systems engineering. The processes involved in the cycle are planning, analysis design implementation and maintenance in a cycle form. Systems development has clearly defined phases of work that systems engineers use in planning, designing, building, testing as well as delivery of information systems. SDLC employs various models for its implementation (Blanchard, 2006).
Iterative Development Model or Incremental Development Model has smaller self-contained phases of life cycle in the project. There is an addition of functionality to the software product in each increment division. This creates the need for testing the added functionality before the software goes to the next stage of development. This model is critical in that it enables early detection of errors that could have been developed during the software development. Incremental Development Model examples include Rapid Application Development (RAD) and agile development.
The waterfall model is a process in which developers follow certain phases in an orderly manner while developing software. These phases form an important part of SLDC in that each phase has to be finished in order to move to the next stage (Blanchard, 2006). This means that it is reviewed to conform to the specifications.
In agile software development, iterative development is used as the basis. However, it advocates for a people centered viewpoint. The processes combine iteration and continuous feedback to successively deliver a software system. The application of coding system through extreme programming which is important in reducing time required for the first pass (Anderson, 2006). Extreme programming on its own is focused on improving the quality of software as well as responding to the customer requirements.
Therefore, SDLC is important in control, monitoring of large projects, offering detailed steps and procedures, and evaluating costs as well as completion targets. It also applies in documentation, creation of a clearly defined user input, enabling easier maintenance and development of design standards.

Works Cited
Anderson, D. &. (2006). Management Information Systems: Solving Business Problems with Information Technology (4th ed.). New York: McGraw-Hill Irwin.
Blanchard, B. S. (2006). Systems Engineering and Analysis (4th ed.). New Jersy: Prentice Hall.

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