Abstract
In order to elucidate a better way of technical guidance in increasing sewing efficiency, we have been doing some research into cooperative sewing.
In the present paper we investigated cooperative sewing of pyjamas from the viewpoint of operation and allowance by the work sampling method.
1. The average percentage of actual sewing operation time and allowance were 84% and 21% respectively.
2. We further investigated existing allowances and found that the practice work left much to be desired. Some of those points are :
1) To reduce waiting time caused by that the work is not assigned adequately to co-workers and consequently the workers do not complete their assignments simultaneously.
2) To increase the number of tools and the area of working room in accordance with the num
