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All Journal Jurnal Rekavasi JURNAL PASTI (PENELITIAN DAN APLIKASI SISTEM DAN TEKNIK INDUSTRI) JMM (Jurnal Masyarakat Mandiri) JURNAL REKAYASA SISTEM INDUSTRI Jurnal Optimalisasi Teknosains : Jurnal Sains,Teknologi dan Informatika Jurnal Ilmiah Vastuwidya Journal of Industrial and Engineering System Jurnal Sains Teknologi dalam Pemberdayaan Masyarakat INVENTORY : Industrial Vocational E-Journal On Agroindustry Jurnal Teknologi dan Manajemen
Rifda Ilahy Rosihan
Universitas Bhayangkara Jakarta Raya
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation Other

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Analisis Perencanaan Permintaan Customer untuk Produk Rear Fender di PT MI Rifda Ilahy Rosihan; Murwan Widyantoro; Roberta Heni Anggit Tansiri; Fadil Triawan
Jurnal Optimalisasi Vol 9, No 1 (2023): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v9i1.7272

Abstract

PT. MI is one of the companies engaged in the manufacturing sector. Rear Fender is a product that produce by PT. MI. The problems for this research is the difference between demand customer and orders which is too far resulting in the remaining stock, with the average of stock is 8,33%. Inventory cost can increase because of excess stock. This aims of the study is to find the best forecasting method for rear fender products. The forecasting method is Moving Average, Weighted Moving Average, and ARIMA. The forecasting method is depend on demand data plots. The result of demand data plots it horizontal plotting so the forecasting method is time series method. The best Forecast for rear fender products is the ARIMA with the ARIMA model (1,1,0). The ARIMA method was chosen because the MAPE values are 13.305, MAD 5435.45 and MSE 41988401 which are the smallest when compared to the 2 other time series forecasting methods.
Analisis Metode Economic Order Quanity Guna Melakukan Efisiensi Persediaan Bahan Baku dan Efisiensi Biaya di Industri Bakery Widya Spalanzani; Panji Sarengat; Rifda Ilahy Rosihan; Erwin Barita Maniur Tambunan
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol 4, No 1 (2023): Published in June 2023
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v4i1.115

Abstract

One of the companies in East Bekasi is a company engaged in the bread industry, with the product being sandwiches. The purpose of this research is to perform raw material efficiency and cost savings of raw material inventory. In this study, identified the bread production process for 1 period (3 months). It is known that this company ordered raw materials, namely 2100 kg of flour and 480 kg of granulated sugar. However, in reality, only 1537 kg of wheat flour was used and 379 kg of granulated sugar. There is a difference between ordering raw materials and using raw materials so that the costs incurred in carrying out raw material inventory exceed the limits of the costs that have been determined by the company. The method used is the Economic Order Quantity (EOQ) method. The goal is to control the number of raw material orders made by this company and indirectly to save raw material inventory costs. The findings are comparing calculations by companies using EOQ, the efficiency of raw materials after using the EOQ method for wheat flour is 542 kg and granulated sugar is 93 kg and savings in raw material inventory costs for wheat flour is Rp. 156,437 and granulated sugar is Rp. 212,092.
Analisis Kualitas Pelayanan Dengan Metode SERVQUAL dan IPA: Studi Kasus Di Bengkel CV Nusantara Motor Yayan Saputra; Rifda Ilahy Rosihan
Jurnal Teknologi dan Manajemen Vol. 21 No. 2 (2023): JURNAL TEKNOLOGI DAN MANAJEMEN
Publisher : Politeknik STMI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52330/jtm.v21i2.113

Abstract

CV Nusantara Motor adalah perusahaan jasa perawatan dan penjualan sparepart sepeda motor. Tujuan penelitian adalah mengukur tingkat kualitas pelayanan. Kinerja perusahaan menurun sejak tahun 2018 yaitu 3.123 pelanggan dari target 3.600, tahun 2019 target 3.600 tercapai 3.000, masa pandemi C-19 tahun 2020-2021 target yang sama tercapai 1.823 pelanggan, usai pandemi awal tahun 2022 belum ada peningkatan dengan target yang sama sampai akhir 2022 dan awal Maret 2023 tercatat 1.935 pelanggan. Hasil penelitian menggunakan metode servqual menunjukkan rata-rata kinerja perusahaan 3,57 dan rata-rata harapan pelanggan 3,81 nilai gap -0,24 (negatif) menunjukan pelanggan tidak puas terhadap perusahaan, strategi meningkatkan kinerja dengan menggunakan metode Importance Performance Analysis disimpulkan bengkel CV Nusantara Motor melakukan perbaikan di prioritas utama (kategori kuadran A) yaitu atribut tersedia minuman gratis, ketersediaan fasilitas penunjang (toilet, ruang tunggu), tersedia lahan parkir yang cukup, dan karyawan menginformasikan kerusakan kendaraan.
Analysis of raw material inventory control for hinge upper assembly products using the economic order quantity method Rifda Ilahy Rosihan; Suci Trisa Kartika; Jasan Supratman; Paduloh; Ratih Kumalasari
TEKNOSAINS : Jurnal Sains, Teknologi dan Informatika Vol 11 No 1 (2024): TEKNOSAINS: Jurnal Sains, Teknologi dan Informatika
Publisher : LPPMPK-Sekolah Tinggi Teknologi Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/tekno.v11i1.829

Abstract

Every business, but particularly those in the industrial sector, have what is known as inventory. In order for the business to survive and carry on with production, inventory is crucial. Inventory control makes sure that products and resources don't run out of stock or become overstocked, which could lead to higher inventory costs and a halt in production. A business engaged in manufacturing is called PT. X. Hinge Upper Assy is one of the products that PT. X manufactures. Overproduction of raw materials caused issues for the hinge upper assembly material during the process, raising the overall cost of inventory. The EOQ (Economic Order Quantity) approach is one inventory control technique that determines overall inventory costs. The EOQ approach takes into account the frequency of orders, the amount of orders per order, safety stock, and reorder points in addition to inventory costs. The purpose of this study was to determine the overall cost of inventory at PT. X using the EOQ approach, as well as the frequency and quantity of orders, safety stock value, and reorder points. The study's findings indicate that the overall cost of inventory with EOQ is IDR 2,500,752.00, with a frequency of orders placed twice and a quantity per order of 20167 pieces, safety stock of 3242.28, and a reorder point of 3257 pieces. When comparing the EOQ approach to the company's traditional method, there was a 63% savings in total inventory expenses.
Co-Authors Agustinus Yunan Ahmad Nur Afiat Dimas Raya erwin barita tambunan Fadil Triawan Hany Riyanti Helena Sitorus, Helena Ibnu Fajar Ida Ayu Putu Cindi Pratiwi iskandar zulkarnaen Jasan Supratman Masjuli Muhammad ferdiansyah dwi rizky Muhammad Fizai Oki Widhi Nugroho Paduloh Paduloh Panji Sarengat Ratih kumalasari Rifki Muhendra4 Muhendra Roberta Heni Anggit Tanisri Solihin Solihin Sonny Nugroho Aji Suci Trisa Kartika Sumanto Tubagus Hedi Saefudin Turseno, Andi Viptia Esti Wiryawanti widya spalanzani Widyantoro, Murwan Yayan Saputra