Patent ID: 7418397

Claim:
A witness system to assist a buyer and a seller after at least one sale operation has been agreed upon when an offer and acceptance have occurred, comprising: confirmation document making means for making a confirmation document by the buyer for each one of a plurality of received seller records sent from the seller to the buyer, each seller record including sales data about one or more items sold by the seller to the buyer, the buyer generating a confirmation document corresponding to each seller record, and each confirmation document indicating a selected sale and corresponding sales data of at least one item among the plurality of seller records; witness receiving means for receiving each confirmation document from the buyer after the buyer makes each confirmation document; confirmation means for confirming by the seller that the content of each of the seller records is in agreement with the content of a corresponding one of the confirmation documents sent to the seller from the witness receiving means, wherein said witness receiving means certifies and registers each confirmation document as being accurate once said confirmation means confirms each confirmation document; and memory means for storing in memory the confirmation documents registered by said witness receiving means, and wherein the witness system responds to any subsequent inquiry of the buyer or the seller relative to the selected sale using the stored confirmation documents, when said confirmation documents are sent from said seller to said witness receiving means, said documents are registered and the fact that said documents are registered is confirmed, and when said contents do not agree, as determined according to said confirmation means, said witness receiving means is notified of the substantive disagreement.