Abstract: This invention provides a terminal searching for web pages on the web and extracting the prescribed data from the web pages and a server verifying and accumulating the extracted data. The prescribed data can be extracted from the web pages on the web in a manner that the process relating to the data extraction is distributed between the terminal and the server. Therefore, necessary processes up to the data extraction are distributed, and the burden placed on each apparatus can be lessened. Further, new data not formerly found in the web pages can be found out and extracted from the web pages that has been updated or newly made.