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Waterfall Model Origin

publish date: 2026/05/30 13:51:25.247894 UTC

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The waterfall model was first published as a software development process model derived from more general system engineering processes. Who is credited with this original publication?

Timeline showing waterfall model originA horizontal timeline from 1968 to 1981 highlighting Royce 1970Dijkstra (1968)Royce (1970)Boehm (1981)Sommerville (1985)First published waterfall model

Correct Answer

Royce (1970)

Explanation

The first published model of the software development process was derived from more general system engineering processes by Royce (1970). Because of the cascade from one phase to another, this model became known as the 'waterfall model' or software life cycle.

Reference

Software Engineering, Ian Sommerville, 9th edition

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