Abstract: Transaction management is facilitated using an approach involving the use of transaction characteristics to authenticate transaction information. According to an example embodiment, a computer processing system is programmed to process a shipment transaction involving a shipper and a carrier. The system is particularly suited to efficiently automate the payment of a shipment transaction and to efficiently provide access to relevant shipment information. The system includes a shipper processor that receives transaction document information such as purchase order information and assists in generating a bill of lading for the transaction. A shipper access terminal interfaces between the shipper processor and a central processor arrangement to control the quantity, quality, and timeliness of information transferred to the central processor arrangement.