A design pattern for reengineering Windows software applications into reusable CORBA objects

CORBA is becoming the most important middle-ware that supports object-oriented and client/server paradigm in distributed computing systems. However the CORBA-based application systems are still scarce up to date. One main reason is that only few CORBA object services have been developed. To have a new CORBA application, a programmer should make efforts to design a program with CORBA interface from scratch. In our previous works, we successfully adapted existing PC software applications, particularly for Windows applications, in binary code mode to the object services under CORBA. To facilitate such reuse, a design pattern supporting design process guidelines is desired. Our study is addressing this pattern with pattern language. A graphic factory temperature monitor system, which integrates MS-Excel under MS-Windows has been implemented to demonstrate the feasibility of our approach.