Study on reduction of stress accumulation while at work in the production

This paper describes an important subject to reduce the stress accumulation in the production and also to remove a human error caused by the stress. Recently a manufacturing innovation has happened due to customer satisfaction. Currently Market-in oriented production is implemented instead of Product-out production. In the past, a high volume production was implemented. And now production companies have to provide customer satisfaction with a flexible production to produce variety of products to meet the customer demands. Therefore human operation becomes more important, especially human work quality. [1] Therefore we have to pay an attention for the workers to reduce a miss operation caused by the stress and fatigue while at the work in the production. We thought that a traditional production method was focused on the efficiency for the high volume production but it is not suitable for the flexible production. We try to find the reduction of the stress accumulation and the fatigue of the work in the production.