A computer data processing system executing a method for selecting an auction methodology for a buyer/supplier procurement process, wherein the method comprises determining an auction scope in the data processing system, determining an auction interaction in the data processing system, determining an auction control in the data processing system, determining an auction pricing in the data processing system, determining a set of auction closing rules in the data processing system, determining an auction iteration in the data processing system, and selecting an auction methodology based on the auction scope, the auction interaction, the auction control, the auction pricing, the auction closing rules, and the auction iteration.