Rational Software Corporation

Rational Software Corporation was a technology company specializing in tools and software solutions to help developers design, build, and maintain complex software systems more efficiently. It provided integrated development environments, modeling tools, and process frameworks that supported software engineering best practices. Established in 1981 and later acquired by IBM in 2003, Rational played a significant role in promoting disciplined, systematic approaches to software development, enabling organizations to produce higher-quality software more reliably and predictably.