Waterfall Methodology for Software development, introduced in 1970 by Winston Royce, is the pioneer of the SDLC processes. In fact it was the first model which was widely used in the software industry. Despite many new models being introduced, the Waterfall methodology is still the dominant process model. Additionally it is important to learn the know-how of Waterfall model in order to fully understand the emergence of Agile development methodology.
‘Methodology’ – means the same in Software Engineering as in English, a procedure. Yeah! You might be wondering then what’s all the fuss about it. Why so confusion. I too feel the same way. It’s just that too many methodologies have evolved since the inception of Software development & testing – different procedures applied to structure, plan & control the process (i.e. inception, requirement gathering, design, coding, testing & go-live).