دانلود رایگان مقاله انگلیسی چارچوب مدیریت نقص مبتنی بر فعالیت برای توسعه محصول - الزویر 2018

Abstract:

As competition intensifies, development of complicated hardware products and the decrease in development cycle lead to increasing design defect risk in hardware products, resulting in all kinds of problems such as unsafe product, product development failure and so on. Therefore, it is important to manage design defect during all stages of product development to improve product design quality and product development success rate. Factors influencing design defects injection vary according to the different attributes of a product development, including the product complexity, the experience of the developers, the development cycle and tool. The most significant challenge in design defect management is to identify design activities that are likely to cause defects. This paper proposes a design defect management framework based on design activities that assess and identify design defects. First, the product development process is decomposed by using a work breakdown structure (WBS) to obtain design activities. Subsequently, a Bayesian network is adapted to construct defect assessment model using design activities as network nodes. Finally, the defect control activities such as review, verification, and validation are used to identify design defect. The proposed risk management framework enables an product development to be focused on the key defect activities in which the most serious defect risk exists and provides a more effective way to assess, identify defect risk along the product development cycle. A case study on medical syringes is presented to validate the capability of the proposed approach in providing low residual defect in delivered products.

6 Conclusion and discussion

Hardware product design defect management, one of the main subjects of product quality management, aims to assess, identify, and correct defects during the product development process. It is a critical and indispensable step to recognize possible defect injection activities for defect management. In this paper, an activity-based defect assessment and defect identification frame for defect management is presented to assist the product development manager to find the critical activities causing design defects. WBS is used to decompose the development process into design activities. A Bayesian network is applied to construct defect assessment model to evaluate the probability of defect occurrence in each activity. By detecting the suspect activities, identification and necessary corrective activities can be taken to prevent the design defects from occurring.

This article is aimed at identifying the critical defect activities that may injure defect. The limitations of this study were the reliance on an expert survey to construct the Bayesian defect assessment model and the consequent requirement for a great effort in data collection. Nevertheless, the outcome of this study already already provides sufficient information to help regulators to devise activities management strategies for lowering residual defects in products develop process. It may create awareness in organizations to reconsider policies regarding the development and Verification & Validation.