Software applications for computer-based patient records require substantial development investments. Portable, open software architectures are one way to delay or avoid software application obsolescence. The Clinical Management System at Temple University School of Dentistry uses a portable, GUI-based, object-oriented client-server architecture. Two main criteria determined this approach: preservation of investment in software development and a smooth migration path to a Computer-based Patient Record. The application is separated into three layers: graphical user interface, database interface, and application functionality Implementation with generic cross-platform development tools ensures maximum portability
