URCA Approach to Scenario-based Round-trip Engineering

By studying existing solutions of round-trip engineering in object-oriented modeling we derived a set of specific requirements, both functional and non-functional, to support round-trip engineering of behavioral model elements. In this paper we propose a use caseand testdriven approach to round-trip engineering of a complete UML model, as prescribed by required elements of the Unified Process template. URCA method was devised to satisfy the stated requirements to the maximum extent possible. Experimental results gained with a prototype that implements the core technique are also given, along with a discussion of some questions requiring further investigation.