Abstract: An authentication system, program and method authenticates users who are parties to a transaction by supplying a first user with a matching key for a prospective transaction, receiving by a second user the matching key supplied to the first user; and matching the key supplied from the first user to the second user against the key supplied to the first user, after the second user has received the key from the first user.

Abstract: The present invention relates to a system wherein each of a reservation server that makes reservations of sales and purchases, a portable terminal owned by a user who makes a reservation, and a shop terminal provided in stores where goods are sold, and a service or entertainment is provided, is connected to a communication network whereby the user makes a reservation for sales or purchase by accessing the reservation server, the reservation server encrypts contents of the sales/purchase reservation and transmits the encrypted reservation information to the aforementioned portable terminal, the user presents the transmitted encrypted reservation information to the shop terminal, visiting the shop terminal, and the shop terminal accesses the reservation server to confirm whether the presented encrypted reservation information is legitimate or not and admits the presenter of the encrypted reservation information if the reservation information is legitimate.

Abstract: A computer network system for implementing a web page providing method is composed of a personnel management system of a user, terminals operated by respective employees belonging to the user, and a server, which are connected to each other via a network. The server stores an employee management table defining the respective roles of the employees' a content management table listing URLs for contents to be provided to the employees, a roll management table defining providable contents and conditions for providing the contents for every role, and a displaying attribute management table defining a work schedule of each of the employees. These tables are updated whenever new data is received from the personnel management system.

Abstract: A combination of target product, difference between forecasted sales and previous year's sales performance, and data for explaining a reason as negotiation factor data is stored in a database. Moreover, a combination of target product, difference between desired procurement quantity condition and previous year's contract performance, and data for explaining a reason as a negotiation factor is stored in the database. Whether to perform persuasion type negotiation or automatic negotiation between a hotel and a wholesaler is decided based on a difference between other party's proposal and previous year's contract performance, a difference between self-procurement condition and previous year's contract performance, and a negotiation factor.

Abstract: A computer network system that executes a virtual outlet establishment mediation method is composed of a plurality of user terminals, a plurality of servicer terminals, and a single virtual outlet establishment mediation server that are capable of communicating via the Internet with one another. The virtual outlet establishment mediation server extracts one or more servicers whose desiring conditions (business group, region) match the attributes (business group, region) of a user. From the servicer or servicers extracted here, the virtual outlet establishment mediation server extracts servicers with attributes (product lineup, payment methods, delivery time, discount rate, point rate) that satisfy the conditions (product lineup, payment methods, delivery time, discount rate, point rate) desired by the user.

Abstract: A computer network system for implementing a web page providing method is composed of a personnel management system of a user, terminals operated by respective employees belonging to the user, and a server, which are connected to each other via a network. The server stores an employee management table defining the respective roles of the employees' a content management table listing URLs for contents to be provided to the employees, a roll management table defining providable contents and conditions for providing the contents for every role, and a displaying attribute management table defining a work schedule of each of the employees. These tables are updated whenever new data is received from the personnel management system.

Abstract: The present invention relates to a system wherein each of a reservation server that makes reservations of sales and purchases, a portable terminal owned by a user who makes a reservation, and a shop terminal provided in stores where goods are sold, and a service or entertainment is provided, is connected to a communication network whereby the user makes a reservation for sales or purchase by accessing the reservation server, the reservation server encrypts contents of the sales/purchase reservation and transmits the encrypted reservation information to the aforementioned portable terminal, the user presents the transmitted encrypted reservation information to the shop terminal, visiting the shop terminal, and the shop terminal accesses the reservation server to confirm whether the presented encrypted reservation information is legitimate or not and admits the presenter of the encrypted reservation information if the reservation information is legitimate.

Abstract: The above-described objects of the present invention are achieved by, in an authentication system for authenticating users who are parties to a transaction, an authentication method includes the steps of (a) supplying a first user with a matching key for a prospective transaction, (b) receiving at a second user the matching key supplied to the first user; and (c) matching the key supplied from the first user to the second user against the key supplied to the first user, after the second user has received the key from the first user.