A system and method for processing particulars of a transaction over a network. The system comprises a supply chain tracking module for receiving supply chain event data from at least one supply chain monitor, the supply chain data relating to the condition or location of an item along a supply chain. The system also comprises a term and requirements module for receiving initial terms and requirements associated with the transaction and for generating modified terms and requirements based on supply chain event data and on at least one value algorithm, the modified terms and requirements being generated while the item is still in the supply chain.