THE USE OF THE WMA METHOD PREDICTS THE INVENTORY OF TOFU RAW MATERIALS CASE STUDY INDUSTRY TAHU IYUS
Abstract
Industry Tahu Iyus is a business engaged in the industrial sector, this business makes white tofu and fried tofu. The problem that occurs in the Industry Tahu Iyus is that it is still difficult to determine the amount of tofu raw material inventory for the next month and experiencing an excess of tofu raw materials if this continues, the Industry Tahu Iyus will experience losses, one of the raw materials will be damaged and will experience a bad smell to the raw materials. The purpose of this research is to be able to build a forecasting system for the inventory of tofu raw materials in the Industry Tahu Iyus using previous data. The method that can be used in this study to predict the inventory of tofu raw materials is the Weighted Moving Average method, because this method is able to provide predictions by utilizing previous data and each data is given a different weight. This study applies the Weighted Moving Average method to obtain accurate forecasting results so as to minimize errors between forecasting and inventory reality, and is applied to a forecasting system for tofu raw material inventory per month with forecasting results for the following month, namely 4.150 Kg with a MAPE value of 6.54%.
Downloads
References
Widyastika and N. Khairani, “Penerapan Metode Economic Order Quantity (Eoq) Dalam Pengendalian Persediaan Bahan Baku Pada Pt. Busur Inti Indo Panah,” Karismatika, vol. 6, no. 2, pp. 29–44, 2020.
A. Nasution, “METODE WEIGHTED MOVING AVERAGE DALAM M-FORECASTING,” JURTEKSI (Jurnal Teknol. dan Sist. Informasi), vol. V, no. 2, pp. 119–124, 2019.
I. Solikin and S. Hardini, “Aplikasi Forecasting Stok Barang Menggunakan Metode Weighted Moving Average (WMA) pada Metrojaya Komputer,” J. Inform. J. Pengemb. IT, vol. 4, no. 2, pp. 100–105, 2019, doi: 10.30591/jpit.v4i2.1373.
T. D. Andini and P. Auristandi, “Peramalan Jumlah Stok Alat Tulis Kantor di UD Achmad Jaya Menggunakan Metode Double Exponential Smoothing,” J. Ilm. Teknol. Inf. Asia, vol. 10, no. 1, pp. 1–10, 2016.
R. Sholehah, M. Marsudi, and A. G. Budianto, “Analisis Persediaan Bahan Baku Kedelai Menggunakan Eoq, Rop Dan Safety Stock Produksi Tahu Berdasarkan Metode Forecasting Di Pt. Langgeng,” J. Ind. Eng. Oper. Manag., vol. 4, no. 2, 2021, doi: 10.31602/jieom.v4i2.5884.
R. Qardhafi, I. Faisal, S. Sundari, and M. S. Asih, “Prediksi Tingkat Penggunaan Air Minum Oleh Konsumen di Depot Monica Water Menggunakan Metode Weighted Moving Average,” TIN Terap. Inform. …, vol. 2, no. 3, pp. 145–150, 2021, [Online]. Available: https://ejurnal.seminar-id.com/index.php/tin/article/view/853%0Ahttps://ejurnal.seminar-id.com/index.php/tin/article/download/853/580.
R. Riyanto, F. R. Giarti, and S. E. Permana, “Sistem Prediksi Menggunakan Metode Weight Moving Average Untuk Penentuan Jumlah Order Barang,” J. ICT Inf. Commun. Technol., vol. 16, no. 2, pp. 37–42, 2017, doi: 10.36054/jict-ikmi.v16i2.20.
E. Agustina and E. Martantoh, “SISTEM PENDUKUNG KEPUTUSAN PREDIKSI JUMLAH STOK BARANG MENGGUNAKAN METODE WEIGHTED MOVING AVERAGE,” J. Inform. SIMANTIK, vol. 6, no. 2, pp. 18–23, 2021.
Z. Silvya, A. Zakir, and D. Irwan, “PENERAPAN METODE WEIGHTED MOVING AVERAGE UNTUK PERAMALAN PERSSEDIAAN PRODUK FARMASI,” JITEKH, vol. 8, no. 2, pp. 59–64, 2020.
R. Rahmawati, Z. Azhar, and N. Marpaung, “Penerapan Metode Weight Moving Avarage Untuk Peramalan Persediaan Kosmetik Pada Toko Robin,” Semin. Nas. Inform., pp. 448–453, 2021.
R. Rachman, “Penerapan Metode Moving Average Dan Exponential Smoothing Pada Peramalan Produksi Industri Garment,” J. Inform., vol. 5, no. 2, pp. 211–220, 2018, doi: 10.31311/ji.v5i2.3309.
I. Setiawan, “RANCANG BANGUN APLIKASI PERAMALAN PERSEDIAAN STOK BARANG MENGGUNAKAN METODE WEIGHTED MOVING AVERAGE (WMA) PADA TOKO BARANG XYZ,” J. Tek. Inform., vol. 13, no. 3, pp. 1–9, 2021.
R. Y. Hayuningtyas, “Peramalan Persediaan Barang Menggunakan Metode Weighted Moving Average dan Metode Double Exponential Smoothing,” J. PILAR Nusa Mandiri, vol. 13, no. 2, pp. 217–222, 2017.
H. Syafwan, F. Siagian, P. Putri, and M. Handayani, “Forecasting Jumlah Pengangguran Di Kabupaten Asahan Menggunakan Metode Weighted Moving,” J. Tek. Inform. Kaputama, vol. 5, no. 2, pp. 224–229, 2021.
A. Nasution, “FORECASTING PRODUKSI KARET MENGGUNAKAN METODE WEIGHTED MOVING AVERAGE,” Semin. Nas. R., vol. 9986, no. September, 2018.
Copyright (c) 2022 Desy Julika Sari
This work is licensed under a Creative Commons Attribution 4.0 International License.
