Patent ID: 7937320

Claim:
A computer-readable storage medium having instructions stored thereon that, in response to execution by a computing device, cause the computing device to perform operations comprising: receiving, at a point-of-sale terminal, a first identifier and a second identifier encoded on an article, the first identifier for a defined class of qualified commodities and the second identifier for a purchase account, the defined class excluding unqualified commodities; in response to receiving the first identifier, displaying an indicator of the defined class of qualified commodities at the point-of-sale terminal and instructions for providing manual input to the point-of-sale terminal indicating whether at least one commodity presented for purchase is included in the defined class of qualified commodities; authorizing use of the purchase account for purchase of the at least one commodity in response to manual input at the point-of-sale terminal indicating that the at least one commodity is included in the defined class of qualified commodities; and refusing use of the purchase account for purchase of the at least one commodity in response to manual input at the point-of-sale terminal indicating that the at least one commodity is not included in the defined class of qualified commodities.