Patent ID: 8744943

Claim:
A computer system, comprising: the computer system coupled with a plurality of buyer computers and a plurality of seller computers, the computer system configured to: generate a plurality of offer window variables comparisons each associated with one of a plurality of offer window variables comparisons, each one of the plurality of offer window variables comparisons comprising: a plurality of sets of bar data, each representing a value specified in one or more of a plurality of offers for an offer variable associated with the offer window variables comparisons and corresponding with an offer price specified in one or more of the plurality of offers, wherein the bar data, with respect to the offer variable represents the value specified in one or more of the plurality of offers for the offer variable associated with the offer window variables comparisons, each set of bar data associated with a quantity indicator that indicates a quantity of items specified in one or more of the plurality of offers wherein at least one set of bar data of the plurality of sets of bar data corresponds with at least one set of bar data in one or more other offer window variables comparisons.