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Rizki Fadhillah Lubis
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INVENTORY : Industrial Vocational E-Journal On Agroindustry
Published by Politeknik ATI Padang
ISSN : -     EISSN : 27231895     DOI : -
Core Subject : Engineering,
Control & Systems Engineering Engineering Industrial & Manufacturing Engineering
INVENTORY mainly focuses on applied research in Agro-industrial systems and its technology. Therefore, INVENTORY will only process and publish submitted research articles or review articles in the area of: 1. Production Planning and Inventory Control 2. Ergonomic and Work Study 3. Product Design and Development 4. Optimization of Production System 5. Information System 6. Manufacturing Facility Design 7. Maintenance System 8. Energy and agro-industrial machinery 9. Related Topic in Industry 4.0 10. Warehouse 11. Procurement 12. Transportation and Distribution 13. Logistic Decision Making 14. Management and measurement of supply chain performance 15. Other related topics with an object of agro-industry, its products (food and non-food) and services (under the decision from editorial board)
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 5 Documents
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Search results for , issue "Vol. 3 No. 1 (2022)" : 5 Documents clear
Komparasi Metode Regresi Linier, Exponential Smoothing dan ARIMA Pada Peramalan Volume Ekspor Minyak Kelapa Sawit di Indonesia Yuniarti, Trisna; Astuti, Juli; Rusmar, Irfan; Widiana , Ika; Bani , Fajar Ciputra Daeng
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 3 No. 1 (2022)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v3i1.74

Abstract

This study aims to compare several methods to get the best methods on forecasting the volume of Indonesian palm oil exports. In addition, this study also aims to estimate the volume of Indonesian palm oil exports for the next five years. Some of the forecasting methods used in this study are linear regression, exponential smoothing, and ARIMA. The data used is historical data on the volume of palm oil exports from 1981 to 2020. The results of calculations and analysis show that the exponential smoothing model of the damped trend method produces the smallest error value compared to other methods, the MAD value is 860,353, the MSE value is 1,707,738,707,222, the RSME value is 1,306,805, and the MAPE value is 20.6%. This method has chosen to be the best forecasting method for the next five years. The forecast results obtained that the volume of Indonesian palm oil exports for the next five years are28.864.223,31 tons, 28.967.062,92 tons, 29.064.976,80 tons, 29.158.200,89 tons, and 29.246.959,81 tons.
Persepsi Pengguna Layanan Sistem E-Procurement Pengadaan Barang dan Jasa Pada PT. Sapta Sari Tama Rizal , Muhammad Alde; Saidatuningtyas , Ifa; Melati , Vutikha Cahya
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 3 No. 1 (2022)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v3i1.69

Abstract

The COVID-19 pandemic has caused the demand for health goods and services to increase. Medicine is one of the important components in the success of the implementation of health efforts. This study aims to evaluate the implementation of electronic procurement of goods and services at PT Sapta Sari Tama, a drug distributor. The results of this study are useful for evaluating the implementation of electronic procurement (E-Procurement) and the basis for developing the E-Procurement system there. This research uses validity test to determine valid variables, reliability test (alpha coefficient) to assess the consistency of answers from sources. Descriptive statistics are used to see the distribution of respondents' answers. The results showed that development can be done on the X5 variable which describes the informativeness of the E-procurement system used.
Pengendalian Persediaan Bahan Baku Penolong Menggunakan Metode Economic Order Quantity di Industri Makanan Olahan Mufti, Wahyu Fitrianda; Zulhamidi; Rusmin, Salman Alfarissi; Musdirwan
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 3 No. 1 (2022)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v3i1.77

Abstract

CV. XYZ is a company engaged in food processing, it processes meat as the main raw material. Beef rollade is one of the products produced by CV. XYZ using "Fort Quarter" (FQ) beef as raw materials and auxiliary ingredients, i.e spices, eggs, onions, TVP (Texture Vegetable Protein) Red, and flour. TVP Red is an important auxiliary raw material in beef rollade production. A shortage of auxiliary materials for TVP Red during the production process will disrupt the process and if production continues, the product quality will decrease. Currently, the inventory policy carried out by CV. XYZ is to check the inventory of and auxiliary materials just before carrying out production activities so that if there is a shortage of auxiliary materials, new orders are made at that time. Therefore, the aim of this study is to determine the number of orders and the optimal frequency of ordering TVP Red using the EOQ method and determining the total cost of TVP Red inventory before and after using the EOQ method. Based on the results of calculations carried out using the EOQ, it can be concluded that the number of economical purchases of TVP Red is 1,007.6 Kg per order. With that number of purchases, the frequency of ordering by CV. XYZ is reduced to 13 times in one year. The difference in the frequency of these purchases is 25 times in one year. With purchase frequency of 13 times in one year, it can save the total inventory cost of Rp. 163.972,4.
Decision Support System Menggunakan Analytic Hierarchy Process dan Analytical Network Process Pada Pemilihan Supplier Bahan Baku Mouludi, Isra; Ramdhanti, Muthia; Jamsan , Firdaus
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 3 No. 1 (2022)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v3i1.80

Abstract

This study aims to determine the best supplier for the selection of raw materials for NPK fertilizer based on three suppliers as an alternative in making supplier selection decisions with 4 criteria (price, quality, service, and delivery) and sub-criteria that have been determined and then arranged into a hierarchical structure. The use of Super Decision software which contains analytical capabilities from AHP (Analytic Hierarchy Process) and Analytic Network Process (ANP) can analyze priority and selectability levels by prioritizing the weight of each criterion against other criteria. the most influential in the selection of suppliers of raw materials for NPK fertilizer with the first priority being the quality criteria, the second priority being the price criteria, the third priority being the delivery criteria and the fourth priority being the service, based on the criteria and sub-criteria in the supplier selection being the main priority, supplier PT. A with the highest weight value 0.56492.
Penerapan Pengendalian Persediaan Bahan Baku dengan Model Probabilistik dan Sistem Kuantitas Pemesanan Tetap Alfi, Rizki; Harif, Muhammad; Pharmayeni
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 3 No. 1 (2022)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v3i1.71

Abstract

Inventory of raw materials is very important for the smooth production of the company and meet consumer demand for the company in market demand. The demand for tire production fluctuates and causes the demand for products not to need to be met to order, due to the shortage of raw materials. To solve the shortage of raw materials, the company holds special orders in consideration of savings in ordering the cost of ordering messages. To overcome the shortage of raw materials, the company holds special orders or sudden orders which will increase the cost of the message. The purpose of this study is to determine the optimum ordering of raw materials to minimize total inventory costs by using a probability model of raw material inventory control with a fixed order quantity system (Q method). From the results of research using the probabilistic model of inventory control method Q method, obtained the optimal order quantity (q*), reorder point (rop), and safety stock (ss) with total inventory costs more efficient compared to the total inventory costs of the company's current policies. what is to be achieved in inventory control is to minimize the cost of ordering, and the cost of savings to the company.

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