| http://www.w3.org/ns/prov#value | - Credit card or other payment information is located only in the data file 114 on the storage device 72 of back end computer 52 To access the front end program 90 over the Internet, users 14 may use a user interface software program 118 that can be run on their own computers for interactive access, or alternatively, users 14 may access the payment system 90 via conventional e-mail programs, for sto
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