MODEL PENUGASAN SEBAGAI MASALAH PROGRAM LINEAR BILANGAN BULAT CAMPURAN UNTUK MENENTUKAN KEBIJAKAN PERSEDIAAN OPTIMAL

Abstract

This article discusses of the multi-item inventory problem with backorder using assignment model as mixed integer linear programming problem with branch-and- bound method. This model aims to determine optimal policy of inventory problem by meeting the specified constrains. The mathematical model for this problem is designed using the LINGO 18.0 application. The solution of the assignment model is compared with EOQ model with backorder. Based of the comparison of the two models, it is concluded that the assignment model as mixed integer linear programming problems are more efficient in minimizing total company’s inventory costs and can be considered to obtain an optimal inventory policy.