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All Journal G-Tech : Jurnal Teknologi Terapan
Fransiska Hernina Puspitasari
Universitas Atma Jaya Yogyakarta, Indonesia
Computer Science & IT Decision Sciences, Operations Research & Management Energy Engineering

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Designing A Multi-item Product Inventory Policy to Reduce Stockouts on CV VLJ Fransiska Hernina Puspitasari; V. Reza Bayu Kurniawan; Trisna Yulianti
G-Tech: Jurnal Teknologi Terapan Vol 8 No 3 (2024): G-Tech, Vol. 8 No. 3 Juli 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i3.4806

Abstract

CV VLJ is a distributor of mineral water and bottled water in Cilegon area, Indonesia selling various water brands and is supplied by four suppliers. CV VLJ often runs out of goods in the warehouse when consumers want to buy the goods they are looking for. As a result, consumers are disappointed and buy it at other distributors. This leads to lost sales. Therefore, this study aims to reduce the loss of sales and minimize the total inventory cost at each supplier. The determination of the order quantity and period is calculated using the EOQ, POQ, EOQ multi-item and multi-item EOI methods. The inventory total cost and lost sales can be calculated through the inventory table simulation. Based on the simulation results, sales losses can decrease by 88-99% for all four suppliers and total costs decrease by an average of around 33% compared to actual conditions.
Managing Inventory in Response to Varying Demand at Retail Store X to Reduce Stockouts Devina Kristalia Irawan; Fransiska Hernina Puspitasari; Ika Murti Kristiyani
G-Tech: Jurnal Teknologi Terapan Vol 9 No 1 (2025): G-Tech, Vol. 9 No. 1 January 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v9i1.6361

Abstract

Both inventory shortages and excess inventory are among the issues encountered in inventory management. Lost sales are one of the impacts caused by inventory shortages. Retail Store X often experiences lost sales due to inventory shortages, such as cigarettes. Fluctuating demand and supplier terms make it difficult for this store to determine the order quantity sent to the supplier. Therefore, this research aims not only to minimize the number of stockouts but also complying with the supplier's requirement which is often disregarded in other research. The number of cigarettes that must be ordered must meet the minimum purchase under the agreed cooperation contract and the budget of Retail Store X that has been determined. This problem is solved using the periodic review system method, which relies on three parameters for the decision-making. This method calculates the order quantity for 10 cigarette products and then simulates over the next month to determine the number of stockouts that occur. Based on the results, one stockout incident was found for Tawang cigarettes amounting to two packs. Besides, the supplier requirement condition from the second supplier is also met and the purchase budget is fulfilled, which is below Rp450,000.00.
Co-Authors Devina Kristalia Irawan Ika Murti Kristiyani Trisna Yulianti V. Reza Bayu Kurniawan