Abstract
This paper proposes a goal programming model for aggregate production planning which enables to form an optimal production plan, where we are able to utilize two actual and prospective demand. The results are summarized as below : (1)The scheduling informations are obtained in more detail than in the model which does not distinguish between two type informations for demand. (2) Consequently, the scheduling process can be much curtalied than in the convertional case where that process in needed independently. (3)The subcontractors can hace a constant volume of order.
