Abstract: To reduce the computational resources used to generate a response, certain inputs from a first request and corresponding outputs are stored in a data structure that is returned to a client device concurrent with a response. When a subsequent request is received, if an input of the subsequent request matches an input stored in the data structure, the output that corresponds to that input is used in a response rather that recomputing the output. For inputs that do not match an input in the data structure, an output is computed and included in a response. The data structure is then returned to the client device concurrent with the subsequent response. Outputs in the data structure may be periodically validated, or may be associated with an expiration time, to ensure that the data structure includes current and valid data.

Abstract: A transaction processing system facilitates the buying and selling of commodity products by establishing a single documentary record for the transaction, requiring approval of variables introduced into the transaction. The parties register and agree to a standard contract of terms. For each transaction, the unique data for that transaction is entered by the parties and then must be affirmatively approved. Next, a schedule for delivery of the product is developed in conjunction with an overall schedule for product delivery for all of the current transactions. After the product is delivered, a product delivery report is provided from the delivery asset specifying the volume of the product, its composition, and shipment. This information, in conjunction with the transaction contract, are utilized to produce invoicing data. The parties must affirmatively approve the invoicing data prior to the production of payment statements by the system.