A point-of-sale terminal for fulfilling orders under non-persistent network conditions is provided. The terminal includes a state processor and an order processor. The state processor queues state changes in durable order queues that correspond to orders in a restaurant. The order processor, coupled to the state processor, generates the state changes and accesses and transmits the state changes in each one of the durable order queues to a synchronization server, from oldest to youngest, when operably connected to a network, where the order processor includes current order state fields corresponding to the orders, and where the order processor utilizes domain specific rules disposed therein to resolve conflicts in the orders occurring from state change updates received from the synchronization server which result from other state changes to the orders generated by one or more other POS terminals.