Provided design, implementation, and technical support for database migration from IMS DB/DC to a CICS VSAM environment. The converted databases consisted of fourteen (14) 3350 spindles of patient billing data which must be reloaded each night to reflect changes made by the batch processing system. Specific tasks included design and implementation of the conversion programs necessary to create the VSAM files suitable for online inquiry and update. In addition, the procedures, control, and performance tuning were provided which were necessary to load that amount of data in the limited timeframe.