XYZ is one of the companies engaging in fast moving consumer goods (FMCG) sector and produce soft drinks as its main product. In supporting the product distribution to its customers, PT XYZ has several administrative offices and distribution centers (DC) which spread across each region. The DC has main function as the warehouse which has storage activity before the products are distributed. One of the DC is located in Bandung, West Java. DC Bandung itself received product shipments from three factories, such as Cibitung, Cakung and Tambun. Related to the product shipment, DC Bandung has not determined the replenishment policy, and this condition results over stock at some periods, due to the unscheduled delivery time and undetermined product quantity. This condition gives a big impact to the total inventory cost that has to be borne by DC Bandung. This research was conducted to give the proposal of product replenishment policy using mathematical model with mixed-integer programming method as one of the linear programming types, which aimed to minimize over stock and total holding cost in DC Bandung with several constraints. Mathematical modeling is involved in this research as an approximation to the real replenishment system in the DC. The results of application of the proposed method are in the form of analytical solution, such as order quantity, and reorder point of each product that will give an impact to the total unit inventory and the total holding cost in the DC. The results calculation of replenishment policy provide savings on total inventory costs as much as IDR 23,800,981.20 Keywords—Mixed-Integer Programming, Order Quantity, Over Stock, Replenishment Policy.
UMKM terbaik yang ada di Banyuwangi diantaranya adalah UMKM UD. Kalirejo yang menghasilkan kerupuk bawang, dan UMKM UD. Sri Mulyo yang merupakan UMKM pertama dan satu-satunya yang menghasilkan kerupuk bonggol pisang, kerupuk lidah buaya, dan kerupuk buah naga. Permasalahan pada kedua UMKM tersebut adalah masih rendahnya penerapan teknologi pengolahan pangan terutama pada proses pemotongan dan penghancuran bonggol pisang. Metode yang digunakan dalam program IbM ini adalah Pelatihan dan Pembinaan, transfer Inovasi Teknologi Tepat Guna, monitoring dan evaluasi (MonEv). Hasilnya terjadi peningkatan kualitas produk (kerusakan kerupuk bawang dari 20 kg per hari bisa diturunkan sampai 2 kg dan kerupuk bonggol pisang dari 12 kg menjadi 1 kg) dan kapasitas produksi Kerupuk bonggol pisang (dari 38 kg menjadi 48 kg), dan bawang (dari 80 kg menjadi 98 kg) pada UMKM dengan inovasi mesin pemotong kerupuk dengan penurunan kerusakan produksi kerupuk, dan mesin pencacah bonggol pisang dengan peningkatan kualitas hasil produksi kerupuk bonggol pisang. Dengan adanya pelatihan di bidang pengendalian kualitas produksi dan manajemen pengelolaan usaha dapat memperkaya wawasan dan menambah pengetahuan bagi pengusaha UMKM, sehingga dapat memberi nilai tambah untuk inovasi produk dari UMKM-UMKM tersebut.
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