UMLAUT is a framework for building tools dedicated to the manipulation of models described using the Unified Modeling Language (UML). TGV is a tool for the generation of conformance test suites for protocols. Both tools are connected so that it is possible to specify an application in UML and derive automatically some test cases. In this article, the integration of those tools in an industrial process is evaluated through a case study. This case study, proposed by Gemplus, is a Java Card applet: a classical electronic purse.