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A new interpretation of the blackboard architecture

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Craig, Iain D. (1993) A new interpretation of the blackboard architecture. University of Warwick. Department of Computer Science. (Department of Computer Science research report). (Unpublished)

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Abstract

This paper describes a new interpretation of Newell's blackboard metaphor of group problem-solving activity. The new interpretation considers the experts of the metaphor to be independent, concurrently active, agents that communicate by posting information on a shared memory (the blackboard). The blackboard in our new interpretation is expanded in functionality and is implemented as a concurrently executing process. The blackboard is able to perform tasks such as agent creation message direction and forwarding, and message censorship. We outline all of these functions and compare them with the conventional (HEARSAY-II derived) interpretation of the metaphor. We end by indicating some of the various ways in which the new interpretation can be used to construct systems that are distributed as well as parallel; as part of this, we show how the blackboard structures of the new interpretation can be recursively composed (embedded) to produce complex systems built from simple components.

Item Type: Report
Subjects: Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software
Divisions: Faculty of Science > Computer Science
Library of Congress Subject Headings (LCSH): Blackboard systems (Computer programs)
Series Name: Department of Computer Science research report
Publisher: University of Warwick. Department of Computer Science
Official Date: 1993
Dates:
DateEvent
1993Completion
Number: Number 254
Number of Pages: 19
DOI: CS-RR-254
Institution: University of Warwick
Theses Department: Department of Computer Science
Status: Not Peer Reviewed
Publication Status: Unpublished
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