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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
 1 
Search results for , issue "Vol 3, No 2 (2022): Published in December 2022" : 5 Documents clear
Penerapan Model ARIMA Dalam Memprediksi Penjualan Produk Minuman Teh Botol Sosro Ukuran 350 mL Iga Dwi Wahyuni; Trisna Yuniarti; Amrin Rapi
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol 3, No 2 (2022): Published in December 2022
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v3i2.99

Abstract

This study aims to provide suggestions for improvements in overcoming stock shortages of soft drink products using a forecasting method. The results of such forecasting will be compared with the forecasting methods used by the company at this time. The Autoregressive Integrated Moving Average (ARIMA) method was used in this study to improve the accuracy of demand forecasting in soft drink products (TBE 350 mL K12 Aseptic). This study used product sales data for the period January 2016 to January 2022. Based on the results of calculation and data processing, it is known that the best model is ARIMA (2,1,0) with a MAPE value of 35,966%. Meanwhile, the method used by the company has a MAPE value of 36.569%. It Shows that the ARIMA method (2,1,0) has better forecasting accuracy compared to the company's forecasting method with a MAPE difference of 0.604%.  The validation results were obtained forecasting in January 2022 with ARIMA (2,1,0) of 22,569 cartons, while the company's method was 21,194 cartons. This shows that the ARIMA method (2,1,0) is more accurate in forecasting because it has a forecast value in the January 2022 period close to the actual demand value, which is 23,193 cartons. The ARIMA model equation (2,1,0) for forecasting soft drink products in the following month is Zt = 0,494Zt-1 + 0,210Zt-2 + 0,297Zt-3
Pengukuran dan Analisis Kinerja Laboratorium Kalibrasi Untuk Meningkatkan Daya Saing Perusahaan Dita Indah Rahmawati; Evi Yuliawati
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol 3, No 2 (2022): Published in December 2022
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v3i2.86

Abstract

Calibration Laboratory PT. ABC is one of the calibration specialist laboratories, offering calibration service facilities and tool sales via a job order system under the warranty and ISO departments. Currently, performance measurement in the Calibration Laboratory is based on incoming order targets being met by the warranty and ISO departments. This method of measuring performance cannot be used as a benchmark. As a result, the Calibration Laboratory must implement an adequate performance measuring method to determine whether or not the company's performance has been satisfactory. This study uses the Sink's Seven Performance Criteria technique to assess firm performance based on seven criteria: productivity, effectiveness, efficiency, quality, profitability, work life, and innovation. The performance measurement results obtained using this method can identify 23 Key Performance Indicators (KPI) at PT. ABC's Calibration Laboratory (Persero). The use of a scoring system based on the Objective Matrix (OiMAX) and the Traffic Light System is known to obtain a performance index of 7.78 for the Calibration Laboratory of PT. ABC in 2021. According to the Traffic Light System, Calibration Laboratory's total performance value is in the yellow category, indicating that average performance has also not met the aim. Management must strive harder to improve its performance by selecting criteria that are poor and have a high weight. They are then assessed and suggestions for improvement are made using Fishbone diagrams and 5W+1H.
Analisis Kualitas Pelayanan Berbasis Preferensi Konsumen: Studi Kasus Pada Bengkel Kendaraan Roda Empat Humiras Hardi Purba; Fransisca Debora; Tosty Maylangi Sitorus; Siti Aisyah; Choesnul Jaqin
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol 3, No 2 (2022): Published in December 2022
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v3i2.95

Abstract

Product and service quality factors are important aspects of business continuity. Consumers will abandon low-quality products and services. Consumers will feel satisfied if all aspects of the products and services are appropriately accommodated. Product and service quality have different tendencies because service quality dimensions are more complex than product quality. This study aims to analyze the quality of customer service at auto repair shops based on consumer preferences. Assessment of the level of satisfaction and consumer expectations of each attribute is done by filling out a questionnaire to identify the gap between the level of importance and level of performance. The consumer's assessment of each indicator of the auto repair shop is carried out through a questionnaire filled out to the consumer to find out the gap between the level of importance and the level of performance. The analytical method used is Importance Performance Analysis–IPA showing that the attributes of auto repair shops that need to be improved are [P1] improving the repair period as promised, [P2] Procedures and managerial capabilities in providing adequate service, [P3] Results following consumer recommendations, and [P4] Knowledgeable workshop managers and staff, [P5] Service speed from responsiveness quality dimensions, [P11] Credibility and honesty of workshop managers and staff, [P12] Clarity of communication and information to consumers. The priority of quality attributes of auto repair shops that will be improved can provide alternative development priorities between human resources and limited equipment servicing.
Penilaian Maturity Level Sistem Manajemen Kinerja Pendidikan Tinggi Berdasarkan Critical Success Factors Aulia Sri Dharma Nova; Henmaidi Henmaidi; Dicky Fatrias; Irna Ekawati
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol 3, No 2 (2022): Published in December 2022
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v3i2.93

Abstract

Higher education institution is an organization whose role is to produce professional, qualified and competitive human resources. Thus, it is required to be able to implement a good performance management system by building a common understanding of the goals to be achieved and how they can be achieved, as well as the approaches needed to manage and develop resources to improve individual, team and organizational performance. In order to be able to implement a performance management system effectively, adequate initial information is needed to determine the current level of organizational maturity as a basis for further improvement. In this study, a model of the maturity level of a performance management system was developed which was adapted to the form of higher education organization. The results show that the maturity level of the Polytechnic ATI Padang's performance management system is at level three, which means the organization already has clear and integrated policies and guidelines in carrying out its education and management processes followed by the use of up-to-date technology. The development and management of resources have been identified based on needs, as well as the formation of a participatory culture in most work units. Improved technology infrastructure is needed to enable effective use of data and the development of HR skills and knowledge regarding performance management systems so as to increase awareness of the influence of individual performance on the overall performance of the institution.
Penerapan Pengendalian Persediaan Material Dinamit/Expogel Menggunakan Metode Inventori Probabilistik Model Q-Back Order di PT Pindad (Persero) Ifa Saidatuningtyas; Muhammad Alde Rizal; Dhea Tisane Ardhan; Sri Rahayu
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol 3, No 2 (2022): Published in December 2022
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v3i2.100

Abstract

PT Pindad (Persero) is in charge of producing commercial military products for the benefit of the government and private sector. However, in its production activities, the company has difficulties in controlling the inventory, one of which is in the dynamite/expo gel component. Stock control using probabilistic inventory method Q-back order model is used to balance between the needs of goods that must be provided and maintain the decrease in sales due to the shortage of goods. This study aims to determine the size of the order lot that minimizes the cost of supplies on the dynamite/expo gel component at PT Pindad (Persero). The optimal order lot size of the calculation result was  with service level of 97.77%. The comparison with company policy showed a decrease in total inventory cost of 0.6% and a decrease in storage costs of 88%.

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