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