Washington State University developed a comprehensive supplies inventory system and a generalized billing system with multiple users in mind. The supplies inventory control system developed for Central Stores, a self-sustaining service center that purchases and warehouses office, laboratory, and hardware supplies, was called AIMS, An Inventory Management System. Its major components include four online transaction processing functions, two online file maintenance functions, and two online inquiries. The most frequently used online transaction is sales processing. Batch processing is limited to a monthly reconciliation procedure, printing of the catalog, and operational and management reporting. The Service Center Billing System consists of special charge processing, which is online, along with file maintenance, file inquiry, special purpose online functions, and batch processing. Currently 14 campus service units are using these online database systems, and have realized better inventory management, improved customer service, and faster revenue return. Eliminating paper flow from these units to the central accounting office has greatly reduced the office's workload. Benefits of these two systems have extended to service unit customers. With video terminals, departments across campus can check inventory availability and current prices, place their own orders electronically, and receive next-day delivery of supplies. (SW)