The present invention is a system for and method to collect, calculate, and display user feedback ratings in an online transaction processing (OLTP) environment. The invention utilizes a client, a network, a Web site host system, and rule-based decision making, to 1) enable users and other systems to submit transaction performance information for a buyer or seller; 2) enable users to view transaction performance information; and 3) enable users to view detailed transaction performance measures for buyers or sellers within specific performance categories. Rating the transaction performance of users of an OLTP environment can serve to improve users' trust in the OLTP environment, improve the reputation of online trading venues, and increase the value of these venues.