The blackboard architecture has been successfully employed for a number of years and in diierent application domains. It is taken by many that there is only one possible interpretation of Newell's original blackboard metaphor, namely the one used in the design of HEARSAY-II, the rst blackboard system. This view is, however, completely false, and we present a new interpretation based on a ration...

Shared Prolog is a parallel logic language based on the blackboard interpretation of logic programming. In such an interpretation a logic program is seen as a set of rules executed by a set of agents cooperating via a shared working memory called blackboard. A distributed interpreter for Shared Prolog was implemented and described in another paper, where the blackboard was a centralized data st...

unlike the languages we know, some of the arabic sentences form without any verbs. arab grammarians call these sentences, which contain a subject and a predicate without any linking verbs, nominal sentences. examining theses sentences indicates that their predicate is composed of one of the following words or structures: 1. noun, 2. prepositional phrase, 3. an adverb of time or place, 4. a nomi...

The purpose of this paper is to identify the key requirements to develop SWARM, or any other agent-based system, as an expert system for engineering design. The paper first discusses a commonly used, agent-based, expert system for design, the blackboard system. There is no control component specified in the blackboard model; this is both its strength and its weakness. The main part of the paper...