Before introduction of Agile methodology, Waterfall model or Linear-Sequential Life Cycle model was the popular methodology for software development. Though it was very simple to understand and use, it had its disadvantages like once the product had gone to testing stage, it was very difficult to go back and make changes to something which was not well thought out earlier. Not only that, it had high risk factor and there used to be no working software until the late development life cycle. These shortcomings along with many others, forced software development industry to rapidly move towards Agile methodology. Continue reading »