Analysis of forecasting and inventory control of raw material supplies in PT INDAC INT'L

Indonesian Operations Research Association - International Conference on Operations Research 2017

Lesmana, E.^1 ; Subartini, B.^1 ; Riaman^1 ; Jabar, D.A.^1

Departemen Matematika, FMIPA Universitas Padjadjaran, Jl. Raya Bandung-Sumedang km 21, Jatinangor, Indonesia^1

关键词: Carbon electrode;    Economic order quantity models;    Forecasting methods;    Moving average method;    Raw material supply;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/332/1/012015/pdf
DOI  :  10.1088/1757-899X/332/1/012015

来源: IOP

【 摘 要 】

This study discusses the data forecasting sales of carbon electrodes at PT. INDAC INT L uses winters and double moving average methods, while for predicting the amount of inventory and cost required in ordering raw material of carbon electrode next period using Economic Order Quantity (EOQ) model. The result of error analysis shows that winters method for next period gives result of MAE, MSE, and MAPE, the winters method is a better forecasting method for forecasting sales of carbon electrode products. So that PT. INDAC INT L is advised to provide products that will be sold following the sales amount by the winters method.