Before Agile #
Managing the Development of Large Software Systems by Dr. Winston W Royce, August 1970
Paper that is often cited as the origin of the waterfall model.
The Leprechauns of Software Engineering by Laurent Bossavit, 2015
Chapter 7: Who’s afraid of the Big Bad Waterfall? argues that Royce inventing waterfall is a myth.
Agile Converstations by Douglas Squirrel and Jeffrey Fredrick, 2020
Chapter 1: Escaping the Software Factory has a few pages on software development in the nineties.