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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part B. Journal of engineering manufacture >Replacing target setting by value models in the 'house of quality' for value-based requirements specifications
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Replacing target setting by value models in the 'house of quality' for value-based requirements specifications

机译：通过“质量之家”中的价值模型替换目标设定，以实现基于价值的需求规范

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摘要

Setting targets for engineering characteristics is common practice in the house of quality' for establishing requirements specifications. However, if deployed arbitrarily, this practice is prone to errors and can often yield irrational results. Three potential methodological problems have been identified, regarding the setting of independent targets for each engineering characteristic, setting fixed targets and cascading down targets from the system level to the component level have been identified. In this article, targets are categorised as constraints and goals because of their different implications for value trade-offs. Then, a multi-attribute utility theory' based approach is proposed, in which a system value model is developed in order to replace the setting of targets for system engineering characteristics and component value models are further derived to replace the setting of targets for component engineering characteristics. These value models enhance the traditional approach to requirements specification so that value-based requirements specifications can be developed. A case study is deployed to demonstrate the applicability of the approach in the civilian aerospace context for the development of requirements for commercial aircraft. The benefits of the proposed approach are twofold: (1) value becomes an explicit construct and (2) value can be rationally modelled and simulated in the house of quality' in order to establish value-based requirements specifications. Furthermore, identified methodological problems in terms of setting engineering characteristic targets at any level are mitigated.
机译：为质量要求制定工程特征的目标是建立质量规范的惯例。但是，如果随意部署，这种做法很容易出错，并且经常会产生不合理的结果。已经确定了三个潜在的方法学问题，分别是为每个工程特性设置独立目标，设置固定目标以及从系统级别到组件级别的级联目标。在本文中，目标因其对价值权衡的不同含义而被归类为约束和目标。然后，提出了一种基于多属性效用理论的方法，在该方法中，开发了一种系统值模型以替换系统工程特征的目标设置，并进一步导出了组件值模型以替换组件工程的目标设置特征。这些价值模型增强了传统的需求规范方法，因此可以开发基于价值的需求规范。进行了案例研究，以证明该方法在民用航空领域中对开发商用飞机需求的适用性。所提出的方法的好处是双重的：（1）价值成为一个明确的结构，（2）可以在质量屋中对价值进行合理的建模和仿真，以建立基于价值的需求规范。此外，缓解了在任何水平上设定工程特征目标方面的方法论问题。

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