A security test scheme is developed to have a set of {TAIL ~ test requirements} whose satisfaction by the merchant entity is sufficient to ensure {HEAD ~ compliance} with the sets of security requirements defined by the payment processing organizations 
A security test scheme is developed to have a set of { TAIL ~ test requirements } whose satisfaction by the merchant entity is sufficient to ensure { HEAD ~ compliance } with the sets of security requirements defined by the payment processing organizations
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH