Abstract: A system and method for a novel and highly advanced data handling network which is ideally disposed for the management of inventory data among a number of dispersed locations, such as a hotel chain. A central computer-processor/data-base is interconnected with a plurality of remote locations, via a novel gateway interface and communications network, which remote locations may comprise either local processors and associated local data bases or terminal devices connected with the system via third-party systems or public networks. Embodied as a hotel reservation and data management network, the system supports not only the storage and exchange of basic room-inventory/reservation data between and among the central and remote locations, but also such advanced data management features as a single depleting inventory for both the central and remote databases, rate plan restricted access, and display of room layout data at an operator's terminal.