DTD MANAGEMENT SYSTEM AND METHOD FOR XML, DTD DISTRIBUTION SYSTEM AND METHOD OF XML, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To realize efficient delivery of DTD of XML, to promote utilization of XML for electronic commercial transactions and to promote spreading of the electronic commercial transaction by the Internet. SOLUTION: In the DTD management/delivery device 1, a metadata (attribute of DTD) at a DTD management is transferred to XML by a DTD index rule 11 and a DTD collection agent 12 to carry out collection and management of DTD. Making the management program complex is avoided, and correction is facilitated. When the DTD is delivered, only the difference is delivered by a DTD delivery agent 14 to shorten a time required for the delivery. A certification check of a delivery side is carried out to enhance a security.