Credit card approval is only one example of a transaction that you executed on
your vacation in Japan.
• Your flight arrangements involved a transaction with the airline’s reservation database, • your passage through passport control at the airport involved a transaction with the
immigration services database, and
• your check-in at the hotel involved a transaction with the hotel reservation database. • Even the phone call you made from your hotel to your family you had arrived safety involved
transactions with the hotel billing database and with a long-distance carrier to arrange billing
and to establish the call.