Agile Methodology

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Introduction to Agile Methodology
What is Agile?
Agile methodology is an approach to the project management which help to respond to the unpredictability of building software through incremental, iterative work cadences, known as sprints. This methodology was developed to deal with situation where the waterfall model fails. The biggest drawback of waterfall model is that it assumes that every requirement of the project can be identified before any design or coding occurs. This may always be applicable for the development of a automobile on an assembly line, in which each piece is added in sequential phases. However it may or may not be applicable for software development. For example, for a BAU (Business as Usual) projects where the software is already in use for a long time, waterfall model is the best method to implement any changes requests because amount of uncertainly is very less compared to developing a new product. However for developing brand new software, waterfall model is not an ideal choice as the amount of uncertainty in terms of requirement and user quality expectation. It might be the case that end product is not exactly what user has expected due to mismatch of requirement understanding between user and developer. It might also be the case that a team might have built the software it was asked to build, but, in the time it took to create, business realities have changed so dramatically that the product is irrelevant. In that scenario, a company has spent time and money to create software that no one wants.
Agile development methodology provides the opportunity to assess the direction of a project throughout the development lifecycle. It does it through an iterative cycle to build and test followed by an assessment by the user/business until they are satisfied with the product. Thus by focusing on the repetition of abbreviated work cycles as well as the functional product they yield; agile methodology could be described as iterative and

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