Abstract
The job enlargement system and the flow line system are compared and examined based on the assembly time resulted from the number of work stations divided. In this comparison, the theory of the evaluation of an economical work system is proposed. It is composed of the essential operation time, the get-and-place time caused by the different layout, the incidental time and the get and place time caused from the conveyor, and the ratio of line balance effciency. Both systems based on the theory can be evaluated with assembly time per unit ; and the availability of theory is examined by a product. As a result, the economical number of stations divided is confirmed.
