Unified Modeling Language (UML)

IBM Rational offers a number of architecture and design products that automate the practice of applying the UML.

Rational products and UML

IBM Rational® Rhapsody® family
A family of model-driven development tools for systems and embedded software using SysML, UML, DDS, UPDM targeting C, C++, Java™, C# and Ada applications.

• Download a trial of Rational Rhapsody Developer

IBM Rational Software Architect family
A family of model-driven development tools for corporate IT, SOA, and general development, supporting Java, JEE, C++, .NET, SCA, Web 2.0, and more.

• Download a trial of Rational Software Architect

IBM Rational Modeler
A free, UML-based software design tool created by one of the founders of Unified Modeling Language.

• Download Rational Modeler

IBM Rational Rose® family
A family of visual modeling tools leveraging UML for software and systems design.

White paper: Safety Analysis using UML

Article: Using models to design business processes and services

Video: Smarter software delivery: From "design" to "done," faster
Domain specific modeling with IBM Rational Rhapsody