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SDLC – Waterfall Model

August 10, 2009
tags:
Software Development LifeCycle
Model
Waterfall Model
In 1970 Royce developed a model called waterfall model.
It consists of sequence of steps like
Planning
Requirement Analysis
Design
Coding or implementation
Testing and Integration
Installation and Acceptance.
It is also called the sequential model because the output of each phase is input to the other.

Advantages:
Simple and Easy to use.
Each phase testing and deliverable takes place.
Work well for smaller projects when the requirements are easily understood.
Disadvantages:
No back tracking (i.e.) if any error occurred on any stage of software development can￯﾿ᄁ￯ᄒタ￯ᄒルt be corrected
at that build.
This model is not used when the requirements are changing.
Poor model for complex and object oriented projects.
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One Comment leave one →
  1. nini permalink
    March 3, 2010 12:38 pm

    Could u tell me what is the impact or problem caused by skipping system design phase of SDLC… Please do reply as soon as possible…

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