METHOD FOR GENERATING AND USING CONTEXT DATA AND PROGRAM THEREOF

摘要

PROBLEM TO BE SOLVED: To discriminate details in which relation between contents occurs by a server and a computer on a user side. SOLUTION: When context data expressing the relation between a plurality of contents is generated by computers 1-1, 1-2, discrimination information indicating the details in which the relation between contents occurs is added to the context data to store it in servers 2-1 to 2-3. The timing at which the context data is generated on the user side includes the time when a user performs processing related to the contents using the computer 1-1. The timing at which the context data is generated on an advertiser side includes the time when an advertiser prepares advertisement of contents by manual operation.