20130124369 | METHOD FOR ASSISTING PURCHASE, DEVICE AND SYSTEM - In a B-to B transaction performed via a telecommunication network, a supplier can obtain the opportunity of having a new business customer while a buyer can figure out a reasonable price of an item to be purchased, thereby reducing useless sourcing cost. Information indicative of items each buyer purchased in the past is stored correlated with each buyer in a purchase assistance device, which assists each buyer in purchases of items via electronic business transaction from any one of a plurality of suppliers, the items having a specification desired by each buyer. Further, information on similar items having the same specification is stored in the purchase assistance device correlated with the items that each buyer purchased. In response to a question about items a buyer purchased in the past, the information on similar items is presented to the buyer in the purchase assistance device, together with the information about the item. | 05-16-2013 |