Round-trip engineering is a functionality of software development tools that provides generation of models from source code and generation of source code from models; this way, existing source code can be converted into a model, be subjected to software engineering methods and then be converted back.

Round trip is a particular model perspective in the UML standard, and it covers conceptual elements of the full execution use case that happens in an implemented system. This includes the network communication, in typical web-based applications.

Round-trip engineering vs. Symbolic Analysis

When rount-trip engineering creates typical UML models from code, Symbolic analysis instead creates symbolic atomistic models from code: from GrammarWare to ModelWare.

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