The purpose of this work is to develop a model of the supply chain that can be used as a reference for all parties engaged in the supply chain in order to assist in harmonization of trade processes and data, use of best practice, promotion and training.

The Model builds on the earlier work carried out by the Business Process Analysis Group (BPAWG) of UN/CEFACT. This described the major processes involved in the International Supply Chain in its simplest form by the three key business processes involved-Buy, Ship, Pay- and the main Business Partner Types involved- Customer, Supplier, Intermediary and Authority.