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All Journal TEKMAPRO Journal of Industrial Engineering and Management JISI UMJ (Jurnal Integrasi Sistem Industri UMJ) The Journal of Pure and Applied Chemistry Research International conference on Information Technology and Business (ICITB) Briliant: Jurnal Riset dan Konseptual Journal of Research and Technology EKONOMIS : Journal of Economics and Business Jurnal Sistem Cerdas Jurnal Teknik Industri Terintegrasi (JUTIN) Budapest International Research in Exact Sciences (BirEx Journal) JURMATIS : Jurnal Manajemen Teknologi dan Teknik Industri Nusantara Science and Technology Proceedings Indonesian Journal of Industrial Engineering & Management Juminten : Jurnal Manajemen Industri dan Teknologi Journal La Multiapp Industrika : Jurnal Ilmiah Teknik Industri Jurnal Penelitian Inovatif Indonesian Journal of Innovation Studies Jurnal Pengbdian Teknik Mesin Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Journal of Social Commerce Eduvest - Journal of Universal Studies The Indonesian Journal of Computer Science Faraday: Journal of Fundamental Physics, Research, and Applied Science Academia Open Jurnal Kendali Teknik dan Sains
Dira Ernawati
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Material Requirement Planning of Choco Roll Product with Least Total Cost (LTC) and Least Unit Cost (LUC) Method at PT. XYZ Marbun, Chandra Ericson; Ernawati, Dira
IJIEM - Indonesian Journal of Industrial Engineering and Management Vol 5, No 1: February 2024
Publisher : Program Pascasarjana Magister Teknik Industri Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijiem.v5i1.22320

Abstract

PT. XYZ  is one of corporate company engaged in the snack industry. One of  PT. XYZ fast moving product is Choco Roll. Choco Roll product have many forming raw material. There is around 20 raw material and packaging material to make 1 box of Choco Roll. Problem that aries at PT. XYZ is in the the supply of raw materials related to the scheduling of ordering raw materials. The company wants to store enough raw material inventory to be able to immediately fulfill all production processes, but this method is not effective and efficient because it will increase storage costs, expiration may occur, and there is a risk of price drops at any time. When a company wants to try to reduce costs by decrease the level of inventory of raw materials on hand, namely the inventory of raw materials that are already in the warehouse, but this condition will disrupt the production process if there are frequent shortages or stockouts of raw materials. Therefore to reduce the inventory cost, it needs to be make best planning in determining the number of ordered of raw material. The company must use a more scheduled raw requirements planning method to obtain a more optimal inventory cost. The purpose of this study is to determine the exact number quantity and order frequency to reduce inventory cost. This research uses lotting technique Least Total Cost (LTC) and Least Unit Cost (LUC) base on Material Requirement Planning (MRP) method. Based on the result of the Choco Roll demand from June 2022 to May 2023 obtained the total inventory cost of IDR 67,683.53 decrease by 25% to company real planning.
Optimalisasi Pengendalian Persediaan Bahan Baku Mie Menggunakan Metode Min-Max Stock untuk Meminimumkan Biaya Persediaan pada PT Dapur Boga Lestari Rahmadhani, Talitha Vania; Ernawati, Dira
Ekonomis: Journal of Economics and Business Vol 8, No 1 (2024): Maret
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/ekonomis.v8i1.1277

Abstract

PT Dapur Boga Lestari is a company that produces noodles and is located in Sidoarjo, East Java Province. Flour and eggs are the primary ingredients in the noodles themselves. In meeting its requirements, the business frequently faces numerous obstacles. PT Dapur Boga Lestari lacks a distinct company-wide method for controlling these basic materials. Despite the fact that the company must control the inventory of raw materials for flour and eggs in order to prevent shortages and excesses of raw materials, which incur additional costs for the company, The results of the calculations indicate that the min-max stock method yields a lower total cost than the company method. In each period, the min-max stock method results in a 19% cost reduction for flour raw materials. In terms of egg primary materials, the company saved 29% from April 2023 to February 2024 and 25% from March 2024 to January 2025. This research provides information that assists businesses in identifying investments that will not benefit their production processes.
Pengukuran waktu baku dan analisis beban kerja pada Produk Insulation Pillows di PT XYZ Perdiansyah, Muhammad Ilham; Ernawati, Dira
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 1 (2025): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i1.38901

Abstract

PT XYZ, is a construction and steel fabrication company that has contributed to various national and international projects. One of its products is insulation pillows, used in a wide range of industrial applications. The study aims to measure standard time and analyze workload in the production process of insulation pillows at PT XYZ. Standard time measurement was conducted using the Stopwatch Time Study method for five main production stages: Marking Cutting, bending, fit-up, assembling, and packing. The results indicate that the standard times for each process are as follows: Marking Cutting (35.46 minutes/unit), bending (19.26 minutes/unit), fit-up (110.50 minutes/unit), assembling (168.26 minutes/unit), and packing (117.83 minutes/unit). Workload analysis revealed that the assembling process has an excessive workload of 175%, necessitating the addition of one worker to achieve optimal workload distribution. These findings provide recommendations for workforce optimization in the production process to enhance efficiency and meet production targets
Upaya mengurangi repair pada hasil pengelasan di Welding School PT XYZ menggunakan metode Fishbone Diagram dan 5W+1H Satya , Mas Tangguh Afritza; Ernawati, Dira
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 1 (2025): January
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i1.39430

Abstract

PT XYZ is an oil field service provider company that has succeeded in achieving high welding quality standards in accordance with international requirements. One of the programs at PT XYZ to improve welding quality is the Welding School. The main goal of welding school is to produce welders who are competent and able to produce quality welds. However, when inspecting the welding results, porosity defects were still found so repairs had to be carried out. The aim of this research is to identify the causes of porosity defect factors using the Fishbone Diagram method. The research results explain that porosity defects in welding results are caused by five factors, namely human factors, machine factors, method factors, material factors and environmental factors. Next, recommendations for improvements using the 5W+1H method are given so that they can be used at the PT XYZ welding school as a reference for reducing repairs on welding results.
Designing Supply Chain Resilience With a Quality Function Deployment (QFD) Approach at PT. XYZ Rizka Novitasari; Ernawati, Dira
The Indonesian Journal of Computer Science Vol. 13 No. 3 (2024): The Indonesian Journal of Computer Science
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i3.3959

Abstract

PT. XYZ is a leading company in the palm oil industry, but there are still problems that need to be addressed in its supply chain management. The problems include 3% product returns from cooking oil shipments to distributors under the brands Sania cooking oil, Fortune cooking oil, Sovia cooking oil, and Siip cooking oil. In addition, there are fluctuations in demand, an increase in demand of 170% with a demand of 20,774 tons and a decrease in demand of 59% with a demand of 7,225 tons at an average monthly production of 12,195 tons. This research aims to design Supply Chain Resilience with a Quality Function Deployment (QFD) approach. This QFD approach uses a 3-level HOQ. HOQ 1 assesses the relationship between customer needs and potential risks, resulting in risk prioritization. HOQ 2 assesses the relationship between potential risks and risk causes, resulting in the prioritization of risk causes. HOQ 3 assesses the relationship between risk causes and resilience measures, resulting in the prioritization of resilience measures. From the research results, 20 resilience measures were obtained and the 5 highest ranks were obtained as priority resilience measures, namely insurance, marketing quick response, product quality, customer relations, preventive maintenance and repair. The results of the resilience measure design are expected to be used as risk mitigation for the company.
Waste Analysis In Delivery Process Using The Lean Distribution Method Adhella Ika Putri; Ernawati, Dira
The Indonesian Journal of Computer Science Vol. 13 No. 3 (2024): The Indonesian Journal of Computer Science
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i3.3960

Abstract

In the current era of globalization, the existence of goods delivery service companies supports almost every area of human life. In the process of delivering goods, PT. X always strives to provide fast and precise service. However, the problem faced by the company is the long lead time for delivery of goods. This study employs a lean distribution approach, applying Value Stream Mapping and identifying waste using the 8 waste framework. The research findings revealed waiting recapitulation of 20%, excess processing of 18%, overproduction of 17%, defects of 13%, non-utilized talent of 10%, inventory of 9%, transportation of 7%, and motion of 6%. With proposed improvements, the delivery process time can be reduced from 8243 minutes to 5929 minutes.
The Influence of ERP-SAP Implementation and Inventory Management on Production Efficiency through Inventory Control Performance Using Partial Least Square (PLS) Method Pradata, Amelia Putri; Ernawati, Dira
The Indonesian Journal of Computer Science Vol. 13 No. 3 (2024): The Indonesian Journal of Computer Science
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i3.3961

Abstract

PT XYZ is the largest manufacturing company in Indonesia that produces biscuits with the support of the SAP system, which has integrated data from each division, especially the inventory control division. Due to the accessibility of real-time data, it was observed that there were two late arrivals of raw materials, causing the company to only achieve 75% of the weekly production target. Therefore, this study aims to determine the effect of ERP-SAP implementation and inventory management on smooth production and provide recommendations for improvement through inventory control performance at PT XYZ. The method used is Partial Least Square (PLS) which uses SmartPLS. Based on the research conducted, it was found that the implementation of ERP-SAP does not have a positive impact on production flexibility, but has a positive impact on inventory management performance, and then inventory management directly positively affects production efficiency and inventory control performance
Supply Chain Risk Mitigation Using House of Risk in Wood Pellet Manufacturing : Mitigasi Risiko Rantai Pasokan Menggunakan Model House of Risk dalam Industri Pembuatan Pelet Kayu Nugroho, Aldi Pramoedya; Ernawati, Dira; Dewi, Sinta
Academia Open Vol. 11 No. 1 (2026): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.11.2026.13692

Abstract

General Background: Manufacturing supply chains are vulnerable to operational disruptions caused by uncertainty, making supply chain risk management increasingly important for maintaining operational continuity and competitiveness. Specific Background: PT Komi Biomass Indonesia, a wood pellet manufacturer in the renewable energy sector, experiences supply chain challenges related to raw material shortages, inconsistent wood waste quality, limited skilled labor, machine downtime, and delivery delays. Knowledge Gap: Previous Supply Chain Risk Management studies have largely focused on established companies, while risk mitigation analysis in newly established wood pellet manufacturing companies remains limited, particularly in industries dependent on furniture wood waste supply and renewable energy market dynamics. Aims: This study aims to identify supply chain risk events, determine priority risk agents, and formulate mitigation strategies using the Supply Chain Operations Reference framework and the House of Risk method. Results: The analysis identified 25 risk events and 28 risk agents across the plan, source, make, deliver, and return processes. Pareto analysis determined 14 priority risk agents contributing to 80% of cumulative Aggregate Risk Potential values. Furthermore, 15 preventive mitigation strategies were formulated, with supplier reconfirmation before delivery schedules, periodic supplier quality feedback, and internal maintenance team formation ranked as the highest priorities based on the Effectiveness-to-Difficulty Ratio. Novelty: This study provides a structured supply chain risk mitigation analysis for the emerging wood pellet industry, emphasizing risks associated with biomass raw material dependency and renewable energy transition dynamics. Implications: The findings provide practical guidance for renewable energy manufacturing companies in developing systematic and proactive supply chain risk mitigation strategies to improve operational reliability and supply chain resilience. Highlights: Twenty-five supply chain disruptions and twenty-eight causal factors were identified across SCOR activities. Fourteen dominant causal sources accounted for 80% of cumulative Aggregate Risk Potential values. Supplier coordination, equipment maintenance, and workforce supervision became the main preventive priorities. Keywords: House of Risk, Risk Mitigation, Wood Pellet
ERP-Based Warehouse System Implementation Using Odoo for Steel Fabrication Stock Accuracy: Penerapan Sistem Gudang Berbasis ERP Menggunakan Odoo untuk Menjamin Akurasi Persediaan dalam Industri Fabrikasi Baja Rochman, Mohammad Habibur; Ernawati, Dira; Nugraha, Isna
Academia Open Vol. 11 No. 1 (2026): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.11.2026.13987

Abstract

This study presents an integrated approach to warehouse management in the steel fabrication sector. General Background: Manufacturing industries rely on efficient supply chain and warehouse operations to maintain competitiveness and ensure accurate material flow. Specific Background: Steel fabrication companies experience material management issues due to semi-manual and non-integrated systems, resulting in significant stock discrepancies reaching 12% of total inventory. Knowledge Gap: Prior studies on ERP and Warehouse Management Systems remain general and lack specific implementation insights using Odoo in steel fabrication environments with complex material structures. Aims: This study aims to design and implement an ERP-based Warehouse Management System using Odoo to address stock inaccuracies and operational inefficiencies. Results: The implementation of integrated modules, including Inventory, Purchase, and Manufacturing, combined with Black Box Testing, reduces stock discrepancies, improves data accuracy, enables real-time monitoring, and strengthens coordination across procurement, warehouse, and production divisions. Novelty: This study provides a practical implementation of an Odoo-based ERP-WMS tailored to steel fabrication conditions characterized by high inventory complexity and integration needs. Implications: The system supports structured production planning, improves operational performance, and facilitates data-driven decision-making in warehouse and supply chain management. Highlights: Integrated modules streamline coordination among procurement, storage, and production units. Real-time monitoring capability minimizes discrepancies between recorded and actual inventory. System testing confirms alignment with operational requirements and functional needs. Keywords: Warehouse Management System, Enterprise Resource Planning, Odoo, Material Procurement, Steel Fabrication
Analisis Pemilihan Supplier Bahan Baku Edamame Dengan Metode Fuzzy Analitycal Hierarchy Process (FAHP) Di PT XYZ Wirawan Wijaksono Walddeon; Dira Ernawati
Jurnal Kendali Teknik dan Sains Vol. 1 No. 2 (2023): April: Jurnal Kendali Teknik dan Sains
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v1i2.281

Abstract

This study aims to analyze the selection of edamame raw material suppliers at PT XYZ using the Fuzzy Analytical Hierarchy Process (FAHP) method. This research involves the process of collecting primary and secondary data which includes identification of supplier selection criteria, collection of criteria and sub-criteria data, and collection of supplier performance data. The results showed that the relevant supplier selection criteria in the context of edamame raw materials at PT XYZ were product quality, price, supply reliability, sustainability and reputation. Based on the FAHP method, the relative weight of each criterion and sub-criteria has been calculated, which helps in evaluating potential suppliers. In addition, supplier rankings are also determined based on the resulting priority values. In conclusion, the FAHP method can be used as an effective tool in selecting raw material suppliers for edamame at PT XYZ. This method helps in reducing uncertainty and complexity in decision making, as well as providing more objective and structured results.
Co-Authors Adhella Ika Putri Aditya Tri Pratama Afrul Mufdi Thobarsi agung setiawan Agustin, Melinda Dwi Akbar Sujiwa Akmal Suryadi Aldo Wicaksono Amel, Amelia Purbaningtyas Andita Rizki Ramadani Andy Dwi Feriansyah Aprilia Kurnia Ardysti, Amelia Ramadhani Arifano, Krisna Ramadhian Ayu Agustina Suryani Az Zahra, Ladya Cheril Bossa No Va Dewi Seda Mera Dodo Zulfikar Dyah Suci Perwitasari Erlina Erlina Erlina Purnamawati Fatmawati, Erliansa Febridan Dzulkifli Fitriyah, Jihan Hasbi Assiddiqi Hayati, Kinanti Resmi Hayati, Kinanti Resmi Iqbaal Ahmad Izzuddin Joumil Aidil Saifuddin Kuswara, Ramadana Esa Luky Noviansyah Lutvia Agustin M Satria Adiyatma Nugraha Maghfiroh, Marjiatul Mahardika Brave Revaldiwansyah Marbun, Chandra Ericson Maulana, Alfin Bima Maunah, Dewi Aisarunnisa' Mera, Dewi Seda Moch. Annas Hidayatulloh Mohammad Alfin Al Farih Mohammad Ridho Permana Muhammad Trisyadi Waluya Jati Nabilla Nabilla Nanang Teguh Teguh Ni Ketut Sari Nugraha , Isna Nugraha, Isna Nugroho, Aldi Pramoedya Nur Aini Fauziyah Nur Rahmawati Nur Rahmawati Nur Rahmawati Nuswantoro, Wira Yudha Perdiansyah, Muhammad Ilham Pradata, Amelia Putri Pradinain, Rizky Fadilla prakosa, albertus Adriyanto Prastyo Utomo Raditya Y E Rafi Fadlurrahman Firjatullah Rahmadhani, Talitha Vania Riska Dewi, Nanda Riska Tia Wulandari Rizka Novitasari Rochman, Mohammad Habibur Rr. Rochmoeljati Sa'idan, Gading Adian Kun Safirin, Moch. Tutuk Sakiyatuddurriyah, Sakiyatuddurriyah Salsa Billa Kharisma Santi Wulandari Santika, Arum Sinda Sari, Komang Nickita Satya , Mas Tangguh Afritza Setiyadi, Nanda sholeha, fitriatus Sholihin, Farhan Aufa Sidabutar, Naomi Sinta Dewi Sinta Dewi Sudrajat, Oka Akbar Tauriza Alfiane, Revica Tranggono Tranggono Tranggono Wirawan Wijaksono Walddeon Yekti Condro Winursito