Author: Winston W. Royce
Royce's 1970 paper is known as the original source of the waterfall model of software development. He used it as an example of a process that simply does not work. Unfortunately, his work was often cited without appropriate reading. Royce neither coined the term 'waterfall' nor advocated the waterfall model as a working methodology.
Royce, Winston W. (1970): Managing the Development of Large Software Systems: Concepts and Techniques. In: Technical Papers of Western Electronic Show and Convention (WesCon) August 25-28, 1970, Los Angeles, USA.