Agustin, Melinda Dwi (2025) Analisis Kebutuhan Liquid Oxygen untuk Optimasi Persediaan Distribusi Pada PT XYZ Menggunakan Metode Peramalan Time Series. Project Report (Praktek Kerja Lapang). UPN Veteran Jawa Timur, UPN Veteran Jawa Timur. (Unpublished)
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Abstract
This study aims to analyze the need for Liquid Oxygen at PT XYZ in order to optimize the management of distribution inventory using the Time Series forecasting method. The main problem faced is significant demand fluctuations, which affect the stability of supply and the efficiency of the production process. This study compares the Moving Average and Exponential Smoothing methods with parameters α = 0.1, α = 0.5, and α = 0.9 to determine the most accurate approach. Based on the analysis results, the Exponential Smoothing method with α = 0.9 gives the best results with a MAD value of 639,051.60, MSE of 8.8867 × 10¹¹, and MAPE of 15.69%. Compared to the Moving Average, which produces a MAD of 1,016,827.62, MSE of 1.45321 × 10¹², and MAPE of 27.19%, this method is proven to be more effective in reducing the risk of excess or shortage of stock. The implementation of the Exponential Smoothing method is expected to increase operational efficiency, maintain distribution stability, and increase customer satisfaction.
| Item Type: | Monograph (Project Report (Praktek Kerja Lapang)) | ||||||||
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| Subjects: | H Social Sciences > H Social Sciences (General) H Social Sciences > HD Industries. Land use. Labor > HD28 Management. Industrial Management |
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| Divisions: | Faculty of Engineering > Departement of Industrial Engineering | ||||||||
| Depositing User: | Melinda Melinda TI | ||||||||
| Date Deposited: | 17 Jun 2025 08:32 | ||||||||
| Last Modified: | 17 Jun 2025 08:32 | ||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/38091 |
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