Abstract: An electronic document classification system for classifying electronic documents received through a network is provided. The classification system comprises a criteria table for storing predetermined criteria for items included in the electronic documents and a score counter provided corresponding to each of the electronic documents. For each of the items included in the electronic documents, the classification system compares the item with a corresponding criterion stored in the criteria table, obtains a score based on the comparison result, and adds the obtained score to the score counter. Therefore, the resultant value of the score counter indicates a sum of the scores obtained for the items included in the electronic document corresponding to the score counter. The classification system assigns a priority to each of the electronic documents in accordance with the value of the score counter corresponding to the electronic document. Thus, the electronic document received through a network are prioritized.

Abstract: A secured as well as convenient system for information exchanging between enterprises using the Internet. An external server is divided into public Web server and a Web data management server, which connect to each other via a firewall. Data sent from browsers of outside users to the Web server are transferred to the Web data management server via the firewall. Thus, the firewall in the external server protects data supplied by outside users.