Monitoring Web Information using PBD Technique

Many web users would like to be kept informed on the latest development of their interested areas over the WWW. To discover web information, web users need to constantly monitor certain web sites and web pages for related information. However, the dynamic nature of the web has made such monitoring task complicated and time-consuming. As most web pages organize its information in a structured manner, users may be interested in only a certain part of a web page rather than the whole web page. This paper proposes a web monitoring system, WebMon, to help users to track a specific portion of a web page for updates. The technique for implementing portion monitoring is based on Programming by Demonstration (PBD).