Telelogic Tau® is a Model Driven Development™ (MDD) environment for systems and applications analysis, design, development, and testing using industry standards including Unified Modeling Language™ (UML 2.0™), SysML, and Model-Driven Architecture® (MDA®).

With Tau, systems developers can rapidly create and maintain specifications and design models. Tau empowers developers with:

• A complete definition of system and subsystem architectures
• Modeling of workflow, functionality, and responsibilities
• Comprehensive and immediate syntax and semantic checking
• Precise visual definitions of system and software behavior
• A powerful Model Verifier, which automatically exercises analysis or design models to provide system execution traces throughout the development process
• Automated unit test generation allowing systems tests to be specified, developed, and maintained
• A fully extensible meta-modeling language, which lets users adapt Tau's underlying object model to better suit their specific domains or processes
• Robust requirements modeling via a seamless integration with Telelogic DOORS®
• Configuration management support with native Telelogic Synergy™ and SCC integrations
• A unique graphical compare and merge capability to support parallel development across distributed teams
• Legacy model import for Rational Rose, Borland Together, Telelogic UML Suite, and others