Experience with porting a Unix version CASE tool to the corresponding Java version

The paper presents similarity in the design and the implementation of a computer aided software engineering (CASE) tool developed on two platforms. OODesigner is a tool that was initially developed to support the Object Modeling Technique (OMT). An initial Unix version was developed in 1994. In 1997, after the completion of the Unix version, we began developing a Java version to support Unified Modeling Language (UML). The development of a CASE tool is a typical application of the Model-View-Controller (MVC) paradigm. Thus, we observed a common design pattern among the versions in the MVC points of view. This design similarity can be used to develop several kinds of CASE tools with the corresponding design notations. We present the process we followed to develop the two versions and we discuss the similarity found between them. We also outline a generic architecture for the design and implementation of CASE tools.