As published on Scrum Alliance Link
My current journey begins in August 1970, when Dr. Winston W. Royce presented his views on "Managing the Development of Large Software Systems" at the proceedings of IEEE WESCON. This revolutionary paper introduced software engineers like me to the world of Waterfall (or, as I like to call it, "what-the-fall"). But we usually skipped the part in our textbooks where Dr. Royce himself stated that pure Waterfall software development would never work. Dr. Royce stated that in order to eliminate most of the development risks, five additional features must be added to the basic what-the-fall approach.