Patent ID: 7216131

Claim:
A method comprising: creating metadata files in personalization of media services in an information system including an information content database, in which parameters descriptive of the content of information services are arranged to be stored, and a user profile database, in which parameters descriptive of users of information services are arranged to be stored, said creating comprising: creating a rulebase including reaction impulses of a test user group to information services presented as stimuli; creating a database descriptive of an information content space and including theoretical alternatives for the parameters descriptive of the content of the information services; creating a database descriptive of a user profile space and including theoretical alternatives for the parameters descriptive of the users of the information services; creating a database descriptive of a reaction space and including theoretical alternatives for parameters descriptive of reactions of the users of the information services, the database being created as an interaction of the database descriptive of the information content space and the database descriptive of the user profile space, the interaction being specified based on the reaction impulses defined in the rulebase; comparing actual parameters descriptive of the content and the users of the information services with the theoretical parameters; creating and storing metadata files as a result of said comparison for at least one user of an information service and for at least one content of an information service based on the reaction impulses defined in the rulebase, creating an interpretation file from the information content database, the interpretation file including linking addresses to the different information objects in the information content database; comparing said interpretation file with the parameters in the information content space by placing corresponding parameters on top of each other; creating a correlation file as a result of said comparison; and deriving and storing, from said correlation file by linking addresses included in the interpretation file, a metadata file descriptive of the information objects included in an information service and the variation in content of the information objects.