| 摘要 |
<p>A point-of-sale system includes a client computer system (22A, 23A, 24A) provided by a first seller of computer systems, including a client software application (24A), and a server computer system (12) provided by a second seller of computer systems different from the first seller of computer systems, including a server software application (16) which provides information from the server computer system to the client computer system. The system additionally includes isolation layer software (14), either at the client computer system or at the server computer system, which facilitates communication between the client software application and the server software application to transfer the information. <IMAGE></p> |
