Inventory control systems with safety stock and reorder point approach

Efrilianda, Devi Ajeng; Mustafid,; Isnanto, R. Rizal

doi:10.1109/icoiact.2018.8350766

Cited by 10 publications

(14 citation statements)

References 8 publications

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“…In existing research, it is stated that supply management is still using stock cards whose standard procedures are not carried out properly, which can lead to inadequate vaccine supplies [10]. Control of an inventory has an important role in monitoring the condition of goods.…”

Section: Related Workmentioning

confidence: 99%

“…Several methods are used to control the amount of inventory, one of which is the reorder point. The purpose of inventory control is to manage the list and renewal of goods at the central warehouse by calculating minimal costs in the supply chain based on consumer demand [10]. The solution offered with the needs of pharmaceutical warehouses is how to control the procurement of vaccines by using reorder points and safety stock so that later you can find out when is the right time to reorder so it can optimize costs incurred by pharmaceutical warehouses.…”

Section: Introductionmentioning

confidence: 99%

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Optimizing costs for vaccine control using the reorder point approach

Huizen

Handayani

Cholil

et al. 2021

regist. j. ilm. teknol. sist. inf.

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Vaccines are biological products that have an important role in human immunity. In Indonesia, some vaccines are categorized as compulsory vaccines and additional vaccines. The demand for additional vaccines is less predictable because they are not mandatory for use. This of course makes the amount of demand for vaccines less predictable. Also, the price of additional vaccines is not cheap when compared to the price of mandatory vaccines. So that the management of vaccines in the pharmacy warehouse is needed so that the amount of supply and demand is balanced so that the costs incurred will be more optimal. The information system regarding vaccine reordering is carried out using a reorder point so that the pharmacy warehouse can order according to the right need and at the right time. The data used are demand data, prices, storage costs, and message costs. The results of calculations using reorder points within four months with a total purchase for the Rotavirus vaccine was 62 for IDR 28,274,948 and 70 for the hospital of IDR 31,801,500 with a difference of IDR 3,528,552. The calculation result using the reorder point for the Hexaxim vaccine with a total purchase for 4 months was 61 with a nominal value of IDR 58,380,060 while the calculation in the hospital was 67 with a nominal value of IDR 63,971,000 so that a nominal difference of IDR 5,590,940 was obtained. Use of the return point can be used to alarm when and how many vaccines to order. This can be seen from the cost difference between the pharmacy warehouse and the calculation using the reorder point for the Hexaxim vaccine and the Rotavirus vaccine.

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Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimizing costs for vaccine control using the reorder point approach

Huizen

Handayani

Cholil

et al. 2021

regist. j. ilm. teknol. sist. inf.

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“…Inventory control plays an important role in tracking the condition of products at the supply chain level of the delivery of goods from the central warehouse to market in line with customer demand [6]. It contains of stock from raw materials to finished goods that is commonly related to items that are used by the manufacturer on producing their products.…”

Section: Related Workmentioning

confidence: 99%

Developing Palm Oil Inventory Control System Using Ms Excel Macro

Ismail

Al-Hadi²

2021

JMMST

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The palm oil sector is just one of the popular sectors in Malaysia that offer one of the highest exports to Malaysia's economy. This study handles the research study of inventory control for Malaysian palm oil plantation. The existing inventory control cannot be running smoothly when the inventory are managed in different user interface systems which is by utilizing manual inventory control like Microsoft Excel and handwriting documents. Data collection was gathered with the targeted respondents, they are core members of the management team who have a great experience as well as understanding of their inventory system. In order to make PSS inventory control much easier as well as organized, an inventory application system is developed utilizing MS Excel Macro. The outcomes of this research study are a computerized supply control system that beneficial, crucial, and also much better substitute for a hand-operated administration system and quick handling.

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“…Defuzzification process differs each demand periods, because it depends on number of data from previous period. Based on (Deb et al, 2018;Efrilianda et al, 2018), de-fuzzification process has some rules based on demand period, there are: 1. If k=1, Fij1 does not have the results because it contains no next statue fuzzy set.…”

Section: Fuzzy Time Series Forecastingmentioning

confidence: 99%

“…The inventory cost includes the ordering cost, procurement cost, holding cost and shortage cost (Deb et al, 2018). An inventory control system is used to keep inventories in a desired state while continuing to adequately supply customers, and its success depends on maintaining clear records on a periodic or perpetual basis (Efrilianda et al, 2018;Lin, 2020;Singh et al, 2018). There are two types of inventory model based on stock period, single-period inventory model (SPIM), and multi-period inventory model (MPIM).…”

Section: Introductionmentioning

confidence: 99%

Fixed Time Period Modelling for Inventory Control System in Regional Warehousing

2020

j.tek.ind.pert.

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Pengendalian persediaan pada perusahaan mampu mengoptimalkan biaya penggudangan dan tersedianya bahan baku dan produk, sekaligus dengan menjaga terjadinya gangguan tingkat kepuasan pelanggan. Faktanya tidak semua perusahaan dapat menerapkan pengendalian persediaan yang cocok seperti penggunaan metode peramalan yang kurang akurat dengan keterbatasan data. Pada pekerjaan ini formulasi pemodelan peramalan inventory menggunakan fuzzy time series untuk pendekatan fixed-time period dengan safety stock. Model ini bertujuan untuk mendapatkan kapasitas penyimpanan yang paling optimal pada setiap gudang regional. Akurasi peramalan diuji dengan mengukur tingkat kesalahannya menggunakan indikator MAPE. Hasil peramalan digunakan untuk menghitung banyaknya produk yang harus dikirim pada setiap gudang regional per periode. Perhitungan banyaknya boks produk harus diproduksi harus disesuaikan dengan level kapasitas dan jumlah produksi setiap produk. Hasil menunjukan bahwa peramalan yang didapat dari enam produk yang dikirim ke empat daerah masing-masing menghasilkan nilai ramal yang memiliki rentang nilai MAPE minimal sebesar 0,29% dan maksimal sebesar 1,94%. Implementasi formulasi ini dalam kasus dunia nyata mampu untuk meningkatkan aliran data antar stakeholder. Kata kunci: formulasi, pemodelan, pengendalian persediaan, peramalan fuzzy time series, MAPE.

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Inventory control systems with safety stock and reorder point approach

Cited by 10 publications

References 8 publications

Optimizing costs for vaccine control using the reorder point approach

Optimizing costs for vaccine control using the reorder point approach

Developing Palm Oil Inventory Control System Using Ms Excel Macro

Fixed Time Period Modelling for Inventory Control System in Regional Warehousing

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