Security payment and change-giving system for electronic transactions involves client-server architecture for online interactive business transactions entailing server and several client end stations

摘要

The security payment and change-giving system for electronic transactions involves a client-server architecture for online interactive business transactions entailing a server and several client end stations. Via each client end station, the user orders the required service and/or article with payment by cash via an automatic change-giving machine at the client end station. As an alternative, the user can effect payment and obtain change after receipt of the ordered article or service.