International Telemetering Conference Proceedings / October 25-28, 1999 / Riviera Hotel and Convention Center, Las Vegas, Nevada / The Telemetry Definition and Processing (TDAP II) application is a PC-based software tool that meets the varied needs - both now and into the 21st century - of instrumentation engineers, data analysts, test engineers, and project personnel in the Test and Evaluation (T&E) community. TDAP II uses state-of-the-art commercial software technology that includes a Microsoft Access 97Ô database and a Microsoft Visual BasicÔ Graphical User Interface (GUI) for users to view and navigate the database. Developed by the Test and Analysis Division of the 96th Communications Group for the tenants of the Air Armament Center (AAC), Eglin AFB Florida, TDAP II provides a centralized repository for both aircraft and weapons instrumentation descriptions and telemetry EU conversion calibrations. Operating in a client/server environment, TDAP II can be effectively used on a small or large network as well as on both a classified or unclassified Intranet or Internet. This paper describes the components and design of this application, along with its operational flexibility and varied uses resulting from the chosen commercial software technology.