Cooperative matchmaking of requests among distributed change monitoring service agents

Web repositories are huge amount of heterogeneous information sources. Besides the target information itself, the changes in Web repository are significant and worth being notified to the user who perceived the out of date information as soon as possible. The changes made in Web repositories occur at unpredictable rates. Unfortunately, stock type information source has no means to inform its prospective users about the changes. While the stock type information source occupies a large percentage of sources on the Web, it is necessary to have a system that monitors changes in Web repositories, and provides comprehensive presentation to the prospective users. This paper presents a system that provides such services with the cooperative matchmaking of requests in resource management module