Design decisions can have unforeseen side effects that cause the need for redesign to propagate across partially completed designs. This risk prevails in linear and ordered models of multidisciplinary design wherein a...
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Design decisions can have unforeseen side effects that cause the need for redesign to propagate across partially completed designs. This risk prevails in linear and ordered models of multidisciplinary design wherein a sequence of specialists each aim to sign off 'completed' portions of a design to their successors. One might imagine that such models should be relatively efficient and easy to manage. Work should flow down-stream from market research to specification to concept design to detail design to manufacture and, finally, to sales. Therefore, since the points of contact between designers are known, each designer should be able to make design decisions whose consequences match the requirements of her immediate successors. The practical flaw in this theory is that one designer's output can conflict with the demands of another designer who is located two or more stages downstream in the ordered sequence of specialists. For example, when a manufacturing designer uncovers mistaken assumptions in the work of a concept designer the need for redesign can propagate back upstream to both the concept designer and to the intervening detail designer. Having established the need for concurrentengineering, the author discusses techniques therein, and in particular the use of knowledge engineering.< >
We propose a model for the concurrentengineering process based on an agent-oriented approach. Our modelling approach captures the relationships between the attributes, perceptions and actions of agents. Our model dif...
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We propose a model for the concurrentengineering process based on an agent-oriented approach. Our modelling approach captures the relationships between the attributes, perceptions and actions of agents. Our model differs from traditional models in that it deals not only with the object being designed, but also with the interaction between the human design agents and its influence upon the development of an evolving prototype. Such a model can be applied even where the design process itself has a nonroutine character, with incomplete task descriptions, nondeterministic solution paths and on-going human intervention. The design object can be seen as having a complex hierarchical structure, and each agent as having its own view of the object. We describe a multilevel procedure that specifies the way in which the design object is synthesised from agent views over time. In this process, the design object is developed in a bottom-up fashion through the coordination of activities of agents at every level. The complex activity of each agent is described as a sequence of elementary generic activities associated with observation and experiment. In computational terms, the effect of agent activity upon the design object is expressed through the use of scripts of definitions which can be operationally interpreted.< >
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