A system for providing distributed control to process transactions is disclosed. The system includes a service provider system having associated therewith a number of rules and a number of meta-rules, a point of service device having associated therewith a number of rules and a number of meta-rules,...http://www.google.ca/patents/US8005763?utm_source=gb-gplus-sharePatent US8005763 - Method and system for providing a distributed adaptive rules based dynamic pricing system
