The Connection Network Model Of The Design Defect Formation And Its Application In The Study Of Hardware Product Design Process

The manifestations of hardware product defects are various and may cause influences of different degrees to the safety, functionality and performance of products. It has great importance to the improvement of product design quality, protection of customer interests and long-term development of an enterprise to avoid and reduce design defects with scientific and systematic methods during the process of product design.Current research about design flaws are mostly targeted to a specific product, explore the causes of defects and look for methods of detection or controlling. However, those consequents have a few meanings of references or guidance to different enterprises. From the perspective of technology management, this paper systematically studied the relationship network model of the formation mechanism of hardware product design defects by using determines the nature of the method which unifies with the quota.Starting from the concept of design defects analysis, this paper has studied the process of hardware product design, and provided a detailed analysis of the design activities on the various stages of product design. With the idea of process method, the author has established the forming process model of product design defects. By analyzing the resources and information which are needed during the various stages of the design process, design defect factors are classified and characterized. Those research methods are the basis to clarify the design defect factors, it gives the classification model of hardware product design defects which reflect the timing relationships and functional task relationships of the design from the perspective of preventing and controlling design defects. With combined qualitative and quantitative research on hardware design and the classification of some design defects of those recalled cars in the past two years as an example, the feasibility and effectiveness of the classification are verified. On this basis, this paper has established a relationship network model of hardware design defect factors and design defect type and makes a quantitative analysis into effect and the author takes defects in the product design process as an object of study and makes regression analysis of the impact of each type of design defects with SPSS software. As a result, the main factors of all kinds of design defects, their manners and extent of the impact of design defects are quantified.The research of this dissertation gives classification methods of design defects and design defect factors based on the design process, and provide the idea of the mutual relations between the relationships model design defects and design defect factors base on the connection network model, which has certain theoretical and practical significance to the identification, prevention and control of design defects. Those conclusions are also useful for the further studying on the formation mechanism of the hardware design defects.