Masashi Uyama

A three-step filtering mechanism

A Three-Step Filtering Mechanism Masashi Uyamal FRIEND21 Research Center Institute for Personalized Information Environment 1-17-1 Toranomon, Minato-ku, Tokyo 105, Japan +8 1-3-3507-0791 Computer systems should help users find useful software services and integrate such services into their tasks. The three-step filtering mechanism selects services that trustworthy colleagues have recommended. It then selects services specific to the context of the user’s task executions. Finally, the mechanism discloses the selected services to the user dynamically and unobtrusively. This contextsensitive disclosure allows users to try out new services in their own task context. The disclosure is unobtrusive since users can ignore the disclosure and continue with their tasks. With the task-associated press, users can reflectively learn such ignored services.