Development of a Multi-Item Inventory Model by Considering Perishable and Return of Goods in a Hospital Pharmacy
DOI:
https://doi.org/10.56741/jnest.v1i01.55Keywords:
multi-item inventory, perishable, probabilistic, return of goodsAbstract
In determining an inventory's quantity, some factors need to be considered. The factors to be considered in the pharmaceutical industry are the fluctuating demand factor (diseases are unpredictable) and the perishable factors. The purpose of this paper is to propose a probabilistic inventory model by considering perishable and return of goods. Compared to the previous models, the developed model has lower inventory costs when compared to the model not considering the return of goods and higher inventory costs when compared to the model that considers deterministic demand patterns. The sensitivity analysis was done to see the behavior of the total cost, component costs, and time to order. The parameters to be changed for the sensitivity test were a fraction of good condition goods, holding costs per unit per period, and ordering cost per unit per period. The analysis showed that total cost, based on joint order, is sensitive to the fraction of good condition products. In general, the model was perceived as able to describe the behavior of the model components.
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References
Tersine, R. J., Principles of Inventory and Materials Management, New Jersey 07458: PTR Prentice-Hall, 1994
Bahagia, S.N., Sistem Inventori. Penerbit ITB, Bandung, 2006.
Nafisah, L., Puryani, A., dan Lukito, F. X. K. B., “Model Persediaan Single Item dengan Mempertimbangkan Tingkat Kadaluwarsa dan Pengmbalian Produk.” Prosiding Seminar Nasional Manajemen Teknologi XIV, Program Studi Magister Manajemen Teknologi Program, Pasca Sarjana, Institut Teknologi Sepuluh Nopember, 2011, pp. A.6.1–A.6.12.
Alfanda, D. Darmianto, P. dan Susatyo, N.W.P., "Pengendalian Obat dengan Menggunakan Economic Order Quantity (EOQ) Probabilitas Berdasarkan Analisis ABC dengan mempertimbangkan Masa Kadaluwarsa dan Pengembalian Produk" , Program studi Teknik Industri, Universitas Diponegoro, 2011.
Mumtahanah A.F.H. "Model Matematika EOQ Multi Item dengan Faktor Kadaluwarsa dan Pengembalian Produk", Universitas Brawijaya, 2015.
Limanjaya, B. Silitonga R.Y.H., Development of Multi Item Probabilistic Inventory Model by Considering Perishable and Purchase Bonus Factors, Jurnal Telematika edisi industrial Engineering seminar and call for paper (IESC). Pp 54-59, 2018.
Silitonga R.Y.H., Kristiana, L.R., Annette Parley,T., “A Multi-Item Probabilistic Inventory Model That Considers Expiration Factor, All Unit Discount Policy and Warehouse Capacity Constraints”. Jurnal Teknik Industri, Vol. 23, No. 2, 2021.
Rosi, P., Ary, A., Rinawati, D.I., “Usulan Model Persediaan Dengan Metode HadleyWithin Dan Chiu Approximation Dengan Mempertimbangkan Pengembalian Pada Produk Farmasi Di RSUD Kardinah”, 2018 Comput. Ind., vol. 70, no. 1, pp. 56–69, 2015.
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