Fieldwork simulator for experiencing human error has been developed as one of the key component in CRM training course for JNFL (Japan Nuclear Fuel Limited) reprocessing plant. The characteristic feature of the developed simulator is that it is consist of downscaled hardware (Field Control Station: FCS and Control Center: C/C) similar to ones actually used in real plant combined with Operator Interface Station(OIS) and the focus of training has been set on the communication among trainees in team for achieving specified task. The error-prone situation has been intentionally prepared by adding erroneous description in the given procedure. The developed simulator has been used during the CRM training course in JNFL and the validity of the simulator has been examined. Based on the behavioral analysis results of one training session, in which four teams of personnel participated, it has been confirmed that the expected error has been observed in half of the teams depending on the characteristics of each team performance. In addition, the subjective evaluation of the developed simulator showed that it was preferably accepted by trainees for enhancing self-recognition of error-prone situations.

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In recent years, the number of younger operators increases in the Japanese industrial plants because of the alternation of generations. The operation manual becomes more important for the safe and stable operations. We analyzed the reported trouble cases happened in the petroleum and nuclear industries due to the problems of operation manuals. The analyses revealed that most of the trouble cases were caused by insufficient information in the part of remarks in operation manuals. This study investigates experimentally the influence of insufficient information in the part of remarks in operation manuals on the performance of novice plant operators using a semi-scale boiler type power generation plant. Two types of operation manuals are prepared for the experiment. The first one is the set of original operation manuals. That is, this type includes all information described in the original operation manuals. The other type of operation manuals has some missing information in the part. The experimental results show that the usage of the operation manuals describing all information has much effect to decrease the operation risk and the rate of omitting operation actions although the operation time to complete the task becomes longer. The sufficient description of the information has little effect on the understanding of operations.

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In this study, we made hypothesis that, for creating 2-dimensional drawings eventually, it might bemore effective to teach basic drawing first, and then teach 3D Modeling using 3DCAD instead of teaching 3D Modeling from the beginning, and we conducted experimental teaching, having divided the students into two groups that receive different teaching methods. As a result, in creating modeling by 3DCAD, almost no differences of effects were observed in the 3D Modeling skills, such as modeling time required, and accuracy of modeling. On the other hand, in the 2-dimensional drawing creations that was the objective, although there was no difference observed in work time between the two groups, in whether they were able to create drawings with considerations of measurement allocations and such, , drawing educated group performed better than novice group. Moreover, in understanding level test, drawing educated group excelled as well. Today, basic drawing education is often omitted, and they teach drawing by using CAD from the beginning, but this study suggested that, although it would not affect the work time so much, it would greatly affect the quality of finished products. Therefore, we could conclude that the basic drawing education is necessary for teaching drawing by using CAD as well.

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