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首页> 外文会议>Lancaster International Workshop on Engineering Design CACD'98, 4th, May 27th-28th, 1998, Windermere, England >Expert System for Design-Validation and Expandability Issues
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Expert System for Design-Validation and Expandability Issues

机译：设计验证和可扩展性问题的专家系统

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摘要

A developing and growing field for Knowledge-Based or Expert Systems is in decision support. Decision making constitutes a significant part of the work that is left to humans within the product introduction process, partly due to the increasing level of automation in manufacturing [Hollnagel, 90]. The decision making processes in design are now the focus of attention in order to apply the benefits of expert system approaches to encapsulate proven experience and to shorten the time to market. The design of an expert system embraces different types of tasks, i.e. identification, conceptualisation, formulation, implementation and validation [Waterman, 86]. In order to ensure or promote the true usefulness of an expert system, its design also has to consider aspects related to its robustness, modularity and expandability. This paper discusses the validation and expandability aspects regarding the development of a prototype expert system for design of fluid power systems [Silva, 97a;Silva, 97b]. In the task of validation, the work reports the tests of the prototype carried out with engineering students to verify the general system acceptability. This includes the metrics definition and test description. For the expandability objective, the paper shows how direct increments in the present knowledge base can be achieved without requiring a great change in the system structure. Possible enhancements involving more radical changes are discussed, including some paths to follow based on the experience obtained from the prototype development.
机译：基于知识或专家系统的发展中和成长中的领域提供决策支持。决策是产品引入过程中留给人类工作的重要部分，部分原因是制造中自动化水平的提高[Hollnagel，90]。设计中的决策过程现在成为关注的焦点，以便利用专家系统方法的优势来封装经过验证的经验并缩短上市时间。专家系统的设计包含不同类型的任务，即识别，概念化，制定，实施和验证[Waterman，86]。为了确保或促进专家系统的真正有用性，其设计还必须考虑与其鲁棒性，模块化和可扩展性有关的方面。本文讨论了有关开发用于流体动力系统的原型专家系统[Silva，97a; Silva，97b]的有效性和可扩展性方面。在验证任务中，该工作报告了与工程系学生一起进行的原型测试，以验证总体系统的可接受性。这包括度量标准定义和测试描述。对于可扩展性目标，本文说明了如何在不对系统结构进行重大更改的情况下直接实现当前知识库的增量。讨论了可能进行的改进，包括更根本的改变，包括从原型开发中获得的经验基础上的一些途径。

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