The Traditional 3-Way Matching Process (AS IS process) The purchasing department of Company X completes a paper purchase order and sends it to Supplier A via fax, with a copy going to the accounts payable department of X. Supplier A ships the goods and they arrive at company Xs receiving dock. A clerk at Xs receiving dock completes a paper receiving document describing the goods and sends it to Xs accounts payable department. Supplier A meanwhile sends a paper invoice to Xs accounts payable department. A clerk in Xs accounts payable department would match three documents: the original purchase order, the receiving document, and the invoice. If all three documents match, an accounts payable clerk issues a paper check to supplier A. If they dont match, an accounts payable clerk calls supplier A by phone to reconcile any shipment errors. The Reengineered 3-Way Matching Process (TO BE process) The purchasing department of Company X completes a purchase order in an online database and sends the purchase order electronically to Supplier A via an extranet. Supplier A ships the goods and they arrive at Xs receiving dock. The receiving clerk uses a Barcode scanner to scan the items received. The scanned item is automatically matched with the purchase order in the online database. If there is a match of the item received to the purchase order in the online database, the computer automatically issues electronic payment to the supplier. If there is no match, the receiving clerk refuses the shipment and returns the goods to the supplier. References: Paul et al. 3rd ed. pp132-147 Chan, J.O. (2013): Process Modeling, Function Modeling, Data Modeling & Model Cross Check Chan, J.O. (2004): Techniques in Enterprise Modeling