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