在我国加入WTO和建立社会主义市场经济的条件下，产品责任制度将起着越来越重要的作用。本文根据产品责任理论的发展和国外产品责任的经验，分析了我国目前产品责任制度存在的一些问题，如缺陷的认定、供应商的产品责任、OEM制造商的产品责任、企业法人变更后的产品责任和防撞性缺陷责任等，以期对我国产品责任制度的发展有所裨益。

Response surface methodology (RSM) is an important tool for process parameter optimization, robust design and other quality improvement efforts. When the relationship between influential factors and output response is very complex, it's hard to find the real response surface by using RSM. In recent years Artificial Neural Networks (ANN) has been used in RSM. But the classical ANN does not work well under the constraints of real applications. An algorithm is proposed in this paper, which is a supplement of the classical ANN methodology. It makes networks closer to the response surface, so that training time is reduced and robustness is strengthened. The procedure of improving ANN by regressions is put forward and the comparisons among the three methods are computed graphically in three examples. Our research shows that the regression-based ANN methodology is a good supplement to the RSM and classical ANN methodology, which can yield satisfied results under condition that the scope of experiments is rigidly restricted.

测量系统能力分析是工序质量改进的一项重要工作，也是QS9000所要求的要素之一，其目的在于研究测量系统对工序质量的保证程度，传统的测量系统能力分析方法是以单台测量仪器为对象的。不适于多测量仪器并行测量的情形。本文以并行测量过程为对象，基于三因素交叉随机实验模型的方差分析和方差估计，提出了并行测量仪器测量系统能力分析的方法，并给出了应用案例。

Process capability analysis is to predict how well the process will hold the tolerance. It is very useful for assisting product developers and process developers in selecting or designing product/process, evaluating and selecting among competing vendors and determining the bottleneck process in terms of process quality. The paper discusses the statistical properties of Cp and Cpk and process capability analysis based on non-normal data and attribute data. A general flowchart for conducting process capability analysis is also given.

How to continuously improve product and process quality has been a focus of research in quality management. A company that is going to set up its CAQ or establish an effective quality system should make sure that the CAQ or quality system will lead to continuous quality improvement so as to meet customer's growing demand for quality. Based on Juran's quality loop philosophy, the paper presents how to utilize continuous quality improvement tools in product design and manufacturing. It addresses the application of QFD and design of experiment to optimize product/process design and how to integrate quality tools. Based on the philosophy of concurrent quality engineering and successful experience of some world class businesses, the paper presents a continuous quality improvement flowchart and puts forward to the strategies to implement continuous quality improvement.