Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Rational Software
open-in-new
<p>Rational Machines is an enterprise founded by Paul Levy and <a href="/facts/Mike_Devlin_(entrepreneur)/nW6yMz4I">Mike Devlin</a> in 1981 to provide tools to expand the use of modern software engineering practices, particularly <a href="/facts/Modular_programming/sNoqKvRD">explicit modular architecture</a> and <a href="/facts/Iterative_and_incremental_development/wqT31VIC">iterative development</a>. It changed its name in 1994 to Rational Software, and was sold for US$2.1 billion (equivalent to current US$3.59 billion) to <a href="/facts/IBM/QszA7nwd">IBM</a> on February 21, 2003. </p>