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Rational Software

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Defunct software company
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Rational Software
Rational Software
IndustryApplication development tools
Founded1981 (1981)
FounderPaul Levy and Mike Devlin
DefunctFebruary 20, 2003 (2003年02月20日)
FateAcquired by IBM
Key people
Mike Devlin (previous CEO)
Websitewww.ibm.com/software/uk/rational/
This article is about the software company that specializes in software architecture solutions. Not to be confused with Rational Systems.

Rational Machines is an enterprise founded by Paul Levy and Mike Devlin in 1981 to provide tools to expand the use of modern software engineering practices, particularly explicit modular architecture and iterative development. It changed its name in 1994 to Rational Software, and was sold for US2ドル.1 billion (equivalent to current US3ドル.59 billion[1] ) to IBM on February 21,[2] 2003.

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