A Hierarchical Distributed Coiitrol Model for Coordinating Intelligent Systeiiis
نویسنده
چکیده
This paper describes a hierarchical distributed control (HDC) model for coordinating cooperative problem-solving among intelligent systems. The model was implemented using SOCIAL, an innovative object-oriented tool for integrating heterogeneous, distributed software systems. SOCIAL embeds applications in “wrapper” objects called Agents, which supply predefined capabilities for distributed communication, control , data specification and translation. The HDC model is realized in SOCIAL as a “Manager” Agent that coordinates interactioiis among application Agents. The HDC-Manager: indexes the capabilities of application Agents; routes request messages to suitable server Agents; and stores results in a commonly accessible “Bulletin-Board”. This centralized control model is illustrated in a fault diagnosis application for launch operations support of the Space Shuttle fleet a t NASA, Kennedy Space Center.
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