Blackboard systems

摘要

The blackboard architecture is becoming an increasingly popular basis for the construction of problem-solving systems which operate in domains requiring qualitatively different kinds of knowledge to be applied in order to arrive at a solution to a problem. This paper presents the metaphor on which blackboard systems are based. The metaphor is then given an interpretation which constitutes the blackboard architecture. The structure of the blackboard database and its contents are considered from an evolutionary point of view. Finally, the paper considers some of the alternative approaches to the control of problem-solving in blackboard systems.