Yuichi Otsuka

EFFICACIOUS DESIGN REVIEW PROCESS INCLUDING ON-THE-JOB TRAINING IN FINDING MISUNDERSTAND ERRORS

The latent problem in the design stage involves unnoticed problems or misunderstood causes of failures. The unnoticed problem can be visualized by the process of the System DRBFM (Design Review Based on Failure Mode) that takes into account the hierarchical structure of products. The misunderstood problems are also visualized by the question by a professional adviser in which involves his important aspects when considers the problems. Afterwards, the contents of the found problems are used to improve Attention in operation, which is the check list of questions, corresponding to the considered failures, that should be asked to designers in next case. The System DRBFM can be regarded as a proactive prevention system by professional adviser, design regulation and attention in operation. This paper proposes an additional function for the System DRBFM. That is an OJT (On-the-Job Training) tool that the professional adviser educates a designer who took misunderstood or unnoticed mistakes in order to timely acquire his lacked knowledge and experiences. To present the effectiveness of this concept, the case study of the design change in a hair drier is illustrated. The application can intelligibly demonstrate the effectiveness of the System DRBFM.

Quantitative prediction for acceptance limit value to society for the service quality of an independent system

Abstract In this paper, we propose a prediction method for an acceptance limit value to society for service quality. The quality of service can be quantified by the subjective evaluation of an individual. The acceptance limit value to society is then defined by a stable limit of the social condition. We then calculate the stable limit in quantity by a numerical simulation using the Hierarchized Cellular Automata model. Results of the calculation show that the stable limit can be determined with the corresponding constants of the subject group. Finally we predict the acceptance limit with the result of calculations and an experimental constant for the subject group. Moreover, an applicable condition of the predicted value is discussed.

A Study on Managing Cycle of Measures for Incident Based on Visualizing Problems

A lot of organizations have introduced a system that collects and analyzes accident information to prevent accidents reccurence [1,2]. However, an introduced accident measures system has the following problems.Copyright