Rational Tools is a set of tools developed by Rational Software Corporation, now a part of IBM, for use in software development. The tools include:
-Rational Rose, for modeling software applications
-Rational Sofware Modeler, for designing and documenting software architectures
-Rational DOORS, for requirements management
-Rational ClearCase, for version control
-Rational TestManager, for testing
There are many other tools in the Rational Tools suite, each designed for a specific task in software development.