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Software Development Life Cycle (SDLC)

3/10/2014

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Software Development Life Cycle (SDLC) is a very important topic for those involved in the IT profession, especially programmers and software developers/testers. Moreover, SDLC related questions are often brought up during job interviews. As such, I will briefly explain the SDLC waterfall approach in this blog post. 

SDLC refers to a linear sequence of stages to develop a system and consists of the following phases: Requirement Gathering/Analysis, Design, Implementation/Coding, Testing, Deployment, Maintenance. While these phases may have some overlap, revising prior stages is not permitted in the Waterfall approach.

SDLC brings discipline, rigor, and order to the implementation of complex projects and will assist in developing information systems in a very deliberate, structured, and methodical way. 

SDLC helps in meeting customer expectations, and reaching completion within time and cost estimates while working effectively and efficiently in the planned technology infrastructure. The interactive visual below illustrates the activities that are involved in each phase of  the SDLC.
Sources:
1.       http://istqbexamcertification.com/what-are-the-software-development-life-cycle-phases/
2.       https://mycareer.deloitte.com/us/en/students/gettingthejob/caseinterviewpreptool
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