after a decade as a procedural application with procedurally-minded developers, the transition from an all-procedural to a mixed object-oriented/procedural system is likely to be bumpy, especially for developers who are still new to object-oriented code. While a complete treatment of the entirety of object-oriented programming (OOP) would more than fill this entire magazine, a firm grounding in the concepts and syntax of OOP should fit in just a few pages.