PERAMALAN PERMINTAAN JUMLAH KONTAINER PADA PT TRI DOMINITAMA UNTUK MEMENUHI KEBUTUHAN CUSTOMER MENGGUNAKAN METODE TIME SERIES

Abstract

PT Tri Dominitama is a company engaged in the field of expedition services. In its business processes, the company always ensures that customer requests for the number of containers are met. However, at one time the demand for the number of containers increased, making it difficult for the company to handle it. With that, the need for forecasting that can be done to predict how many container requests in the future. The purpose of this study was to determine the appropriate forecasting method and the results of the demand forecasting error using the time series method. Solving this problem is done using the time series method which consists of exponential smoothing, quadratic and linear regression as well as for data processing techniques using Microsoft Excel. The results obtained from the selection of the best method is the quadratic method with the results of the Sum Square Error (SSE) value of 2255464,1, the Mean Square Error (MSE) value of 250607.12 and the Mean Error (ME) of -435.4082. Based on the 3 forecasting methods, it is known that the forecast value of the demand for the number of containers for the next 3 months, namely October, November, December 2022 is 1011 units, 1110 units, and 1209 units.