Telelogic Rhapsody is an industry-leading UML 2.1 and OMG SysML-based Model Driven Development (MDD) environment for technical, real-time or embedded systems and software engineering. Telelogic Rhapsody enables reuse of existing software assets, whether source code or model based, provides a flexible development environment for both function-oriented and object-oriented graphical design techniques to co-exist in one environment and improves productivity and quality through validation of the design early in the development lifecycle when defects are less costly to fix.