US Patent 7296739 Managing on-line transactions

On-line transactions may be managed between an on-line transaction service and a product vendor inventory management system by providing allocations of dedicated inventory from the system to the service. The service then may complete on-line transactions against the allocation without needing to contact the service to authorize each transaction. This may speed up the rate at which on-line transactions are completed and increase the number of transactions that can be completed by the on-line transaction service.