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2 June 2015 - 14:14, by , in Blog, Comments off
Agile is the new soundbite keyword, and we will probably hear it ad nauseam in the coming year. So best to get our heads around exactly what it means. The term has gained popularity in software development circles. It helps to understand the progression over the decades to where Agile is an accepted and approved approach. In IT software development from way back in the 1970s, the way projects were approached is now called Waterfall. That’s because each stage (requirements gathering, specification, development, testing etc.) was completed before the next stage began, like a series of waterfalls on a river. A project was estimated in its entirety at the outset. A large proportion of the total effort and cost was invested at the beginning to investigate and agree requirements, translate those into technical specifications, and then plan every stage right through to roll-out and post-implementation support. Not surprisingly, estimates were very difficult to get right. Sometimes they were way off target, which was the sorry history of many Government IT projects. To illustrate this point, the author was a software development manager with a secret formula for estimating close to being in the right ballpark. Very simply, I obtained estimates...