System Development Life Cycle Models

The systems development life cycle model was developed as a structured approach to information system development that guides all the processes involved from an initial feasibility study through to maintenance of the finished application. SDLC models take a variety of approaches to development.

A company or a solution provider that deals in comprehensive Web Development Services, follows a well-defined system development life cycle to ensure that web solutions are complete in all the aspects and offer the results that a client expects. An expert goes through extensive analysis of the entire project to make sure that every individual component of the solution exhorts accurate results.

System Development Life Cycle Model includes:

The Waterfall Model:

This is the classic SDLC model, with a linear and sequential method that has goals for each development phase. The waterfall model simplifies task scheduling, because there are no iterative or overlapping steps. One drawback of the waterfall is that it does not allow for much revision.

Rapid Application Development (RAD):

This model is based on the concept that better products can be developed more quickly by: using workshops or focus groups to gather system requirements; prototyping and reiterative testing of designs; rigid adherence to schedule; and less formality of team communications such as reviews.

Joint Application Development (JAD):

This model involves the client or end user in the design and development of an application, through a series of collaborative workshops called JAD sessions.

The Prototyping Model:

In this model, a prototype (an early approximation of a final system or product) is built, tested, and then reworked as necessary until an acceptable prototype is finally achieved from which the complete system or product can now be developed.

Synchronize-And-Stabilize Model:

This model seems the most important one that a Custom Web Development Company follows throughout the development. It involves teams working in parallel on individual application modules, frequently synchronizing their code with that of other teams and stabilizing code frequently throughout the development process.

The Spiral Model:

This model of development combines the features of the prototyping model and the waterfall model. The spiral model is favored for large, expensive, and complicated projects.

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