| 摘要 |
<p>PURPOSE:To increase the operation speed and to rationalize the operation by sorting data in a table, in a proper order. CONSTITUTION:A CAT terminal equipment 1 installed in each shop is connected to a communication circuit network 3, and not only a host equipment 4 of each card company but also a host equipment 5 of a DLL center is connected to the communication circuit network 3. A table is provided where plural data blocks where discrimination data to discriminate enterprise codes and member's numbers and identification data to designate host equipments 4 of card companies correspond to each other are stored, and the table is retrieved with the enterprise code or the member's number when a credit card is read. At this time, data blocks in the table are sorted in accordance with the number of digits of discrimination data. When a card company is discriminated by the member's number, a tie-up card has the number which is included in the card of a credit company and identifies the tie-up card itself, and the host equipment 4 whose identification data coincides with it in the largest number of digits is a more proper access destination.</p> |
