This paper describes Michele, a multi-purpose in- terface architecture model based on communica- tion among multiple agents. A user, task, docu- ment, or any other entity composing cooperative work, can be represented as an agent in Michele. Michele is especially suitable for supporting co- operative work on distributed computer networks that allow users to attach or detach worksta- tions without central control. It is currently run- ning on a 192Kbps high-speed computer network, which is connected to most of the major world- wide networks. Michele has been applied exten- sively to several specific problems including intel- ligent handling of office documents, scheduling of group members, and group decision making. In this paper we describe multi-agent model of Michele, model description language, implemen- tation issues, and applications in detail.