The purpose of manufacturing is to produce well-balanced quality of QCD(Quality, Cost and Delivery), reliable products, and systems by using rigorous scientific methods while seeing how the situation is. Moreover, manufacturing aims to contribute to society’s prosperity by providing products to the market. The above idea should be applied consistently in Times of Fourth Industrial Revolution, which also includes IoT (Internet of Things), AI, and Big Data. In fact, society cannot exist without preventing accidents caused by the vulnerability of the security network beforehand in the social infrastructure, such as autonomous vehicle. In this papers, prevention systems and its new developments based on quality management and quality assurance that were established in Japan, are proposed focusing on motivation, seven viewpoints on prediction, and white mode. White Mode confirms safety state, and without confirming it, proceeding to the next step is prohibited. Utilizing both Black Mode and White Mode are important to achieve quality, reliability and safety.
This article describes a method for preventing medical accidents by utilizing incident information. Each medical institution classifies and grasps the tendency of the accident based on the similarity from the large amount of report data. This paper introduces a classification method by machine learning, which is currently under development, focusing on hierarchical clustering. In medical institutions, tools that can easily analyze interactively are required, and an example is shown.
This paper discusses Hyper Design which is a new design paradigm and shows its method- ology concretely. A scientific design is carried out using the expression, however, it is approximate expression. The approximate expression is often a multivariate multinomial expression made by the data which is acquired by an experiment plan. When the specific variable (hyper factor) is focused in this expression, another multinomial expression based on focused variable can be constituted. After it is constituted, the necessary role is assigned for focused variable, design is enabled. An engineer has the freedom to decide which variable must be focused and decide which role must be assigned for it. This paper discusses a design as free creative activity of engineer from this point of view. Hyper Design discussed in this paper is capable to explain various types of design in a comprehensive manner, and at the same time, it is applicable to wide area of actual practices.
Quality Engineering, so called Taguchi Methods for building quality in products and for maintaining quality of products or production lines that were developed by late Dr. Genichi Taguchi. The author will introduce the outline of Quality Engineering and their methods.
The author introduces and appreciates original statistical methods proposed by Gen-ichi Taguchi from 1957 to 1977 such as his shrunken estimators, nonparametric inferences to clarify significant differences of probability distributions and unique design of randomized experiments. The author also reviews Dr. Taguchi's classification of input variables to clarify their roles in the de-signed experiments.
The Mahalanobis-Taguchi (MT) system, which is representative of the Taguchi method, plays an important role in various fields centered on the manufacturing industry. Within these fields, the MT method proposed at the earliest stage has been applied to various data as a practical anomaly detection procedure, and there are abundant application cases. However, it is clear that the con- ventional MT method cannot always perform appropriate analyses. Therefore, due to the practical demand for the MT system, we have proposed novel anomaly detection procedures to appropriately analyze real problems. In this paper, we comprehensively report our research results on the MT system, especially for high-dimensional data.
The phrase “Koto-tsukuri”, which is known to be a unique, original expression in Japanese, is supposedly one of the most important keywords in terms of TRAFST’s focus. Nonetheless, the phrase shows considerable ambiguity, and thus, TRAFST is in need of an unequivocal definition of the phrase. In this paper, we inquire how to redefine the phrase by illuminating the conceptual difference between “Mono” and “Koto” in ordinary use. We conclude that the contrast between “Mono” in “Mono-tsukuri” and “Koto” in “Koto-tsukuri” should be characterized in light of the relation between means and event or phenomena it brings about.