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Dwi Sukma Donoriyanto
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INDONESIA
TEKMAPRO Journal of Industrial Engineering and Management
Published by Universitas Pembangunan Nasional Veteran Jawa Timur
ISSN : 19075146     EISSN : 26566109     DOI : https://doi.org/10.33005/tekmapro.v19i2
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering
Journal of Industrial Engineering and Management, National University of Veterans Development, East Java is a journal that effectively bridges the gap between academics, policy makers, and practitioners and connects various Industrial Engineering and Management communities. While the focus of the publication of this journal on Industrial Engineering and Management research includes: · Reverse Logistics Management · Global Supply Chain Management · Human Factors Engineering/Industrial Ergonomics · Risk Management · Operation Research/Optimization/Metaheuristics · Production Planning and Scheduling · Sustainable Manufacturing Systems · Management of Technology and Innovation · Quality Control and Management · Product Design and Development · Service Design and Management · Healt and Safety management · Cost Analysis Management/Financial Engineering · Business Process Engineering · Facility Design and Layout · Transportation Management · Information Management and Technology · Warehouse Management · Customer Relation Management
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 334 Documents
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Analysis of Quality Control for Defective Exhaust Manifold Products in the Casting Process Using the Seven Quality Control Tools ramdhani, ade yanyan; Maya Novian Sridara Lutfi
Tekmapro Vol. 20 No. 2 (2025): TEKMAPRO
Publisher : Program Studi Teknik Industri Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/tekmapro.v20i2.882

Abstract

XYZ merupakan salah satu perusahaan manufaktur yang memproduksi berbagai komponen otomotif, salah satu produk unggulannya adalah exhaust manifold. Permasalahan pada perusahaan ini adalah sering kali mengalami cacat produk yang terjadi pada proses produksi. Berdasarkan data produksi dari Februari 2023 hingga Januari 2024 menunjukkan total produksi sebanyak 7.700 unit dengan 2.540 unit cacat. Tujuan penelitian ini adalah untuk mengidentifikasi penyebab kecacatan produk dan merencanakan rekomendasi perbaikan dengan menggunakan metode Seven Tools. Teknik pengumpulan data pada penelitian ini dengan menggunakan data primer dan data sekunder. Hasil analisis diagram pareto dan fishbone menunjukkan terdapat empat kriteria jenis cacat yang sering terjadi yaitu sand inclusi sebanyak 855 unit dengan persentase cacat (34%), cold shut sebanyak 760 unit dengan persentase cacat (30%), gas hole sebanyak 668 unit dengan persentase cacat (26%), dan bad mould sebanyak 257 unit dengan persentase cacat (10%). Adanya cacat produk ini dipengaruhi oleh berbagai faktor seperti manusia, mesin, material, dan metode. Solusi perbaikan untuk mengurangi cacat adalah dengan meningkatkan optimalisasi pengawasan saat proses produksi, memperketat penerapan standar operasional prosedur, dan melakukan pemeliharaan mesin secara berkala. Implementasi Seven Tools terbukti efektif dalam mengidentifikasi penyebab utama kecacatan produk. Hal ini diharapkan dapat meningkatkan kualitas produk, mengurangi pemborosan, dan meningkatkan daya saing perusahan.
Total Quality Control (TQC) Analysis in Identification of Damage to Coffee Production at PT XYZ Nugraha, Isna; Pulansari, Farida; Ramadhan, Gilang
Tekmapro Vol. 20 No. 2 (2025): TEKMAPRO
Publisher : Program Studi Teknik Industri Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/tekmapro.v20i2.886

Abstract

PT XYZ is a coffee processing company with a production process involving five stages: sorting, drying, peeling, selecting, and packaging coffee beans. This study applies the Total Quality Control (TQC) approach to identify factors causing product defects. Methods include p-control charts to monitor quality variations statistically and fishbone diagrams to analyze root causes. Data were collected through interviews, observations, and company documents. The analysis revealed seven data points exceeding the upper control limit (UCL) and 11 below the lower control limit (LCL). Human errors, inadequate training, and machine-related issues were identified as the primary causes of defects. Environmental factors, such as inconsistent humidity levels, were also found to affect product quality. The findings provide actionable insights for PT XYZ to implement Kaizen-based improvements, focusing on minimizing defects, enhancing production quality, and maintaining product consistency. These measures are expected to support the company in achieving better control over quality processes and ensuring the stability of its coffee product standards.
Analysis of the Influence of Service quality on Customer Satisfaction and Loyalty at Bank BCA in Surabaya Fadia, Nevy; Rachmat, Basuki; Indrawati, Trisa
Tekmapro Vol. 20 No. 2 (2025): TEKMAPRO
Publisher : Program Studi Teknik Industri Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/tekmapro.v20i2.889

Abstract

This study aims to anslyze the influence of service quality on customer satisfaction and loyalty at Bank BCA in Surabaya. Service quality is a crucial factor in the banking industry as it affects customer satisfaction, which ultimately impacts their loyalty. This research employs a quantitative method with data collection conducted to Bank BCA customers. The data analysis technique used is regression analysis with the assistance of statistical software. The result of the study indicate that service quality has a positive and significant effect on customer satisfaction. Furthermore, customer satisfaction also has a positive and significant effect on customer loyalty. These findings suggest that the higher the service quality provided by Bank BCA, the higher the level of customer satisfaction, which in turn enhances their loyalty to the bank. Therefore, Bank BCA need to continuously improve its service quality to maintain customer satisfaction and loyalty. Keywords: corporate image, service quality, customer satisfaction, customer loyalty.
OPTIMIZATION OF JAVANESE LANGUAGE LEARNING THROUGH STORY ADVENTURE GAME Maula Yudhananta, Naufal; WIJAYANTI, ESTI; CHAMID, AHMAD ABDUL
Tekmapro Vol. 20 No. 2 (2025): TEKMAPRO
Publisher : Program Studi Teknik Industri Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/tekmapro.v20i2.936

Abstract

This research addresses the critical decline in Javanese language usage among younger generations, with only 45% of Central Javanese children actively using the language in daily communication. The study aims to develop and evaluate "Story Adventure of Cakra: Javanese Language," an educational game designed to optimize Javanese language learning for elementary school students aged 7-12 years. The research employed a qualitative methodology involving interviews with students and teachers, participatory observation, and the Game Development Life Cycle (GDLC) framework using Construct 3 engine. The game integrates adventure gameplay mechanics with comprehensive Javanese language instruction, featuring interactive storytelling, script learning modules, cultural elements including unggah-ungguh etiquette and wayang stories, and assessment quizzes. The implementation encompasses four main components: an intuitive user interface with traditional Javanese aesthetics, educational content covering aksara angka, aksara swara, aksara sandangan, and aksara Jawa, engaging adventure gameplay where players control character Cakra to collect script items while avoiding monsters, and comprehensive evaluation systems. Blackbox testing demonstrated 100% functionality validation across all game components, confirming technical reliability and educational effectiveness. The findings reveal that gamification strategies successfully transform traditional language instruction into engaging interactive experiences, bridging conventional teaching methods with contemporary digital learning preferences. This research contributes significantly to educational technology by demonstrating how innovative technological solutions can revitalize interest in regional language preservation while providing measurable learning outcomes for cultural heritage sustainability. Keywords: Javanese language learning, educational game, cultural preservation, gamification, story adventure
EXPORT SALES, FIRM AGE, AND REVENUE GROWTH : THEIR IMPACT ON FINANCIAL PERFORMANCE WITH DEBT MATURITY AS A MODERATOR IN INDONESIAN MANUFACTURING FIRMS Aris, Moh; Setiadi , Pompong Budi; Rahayu, Sri
Tekmapro Vol. 20 No. 2 (2025): TEKMAPRO
Publisher : Program Studi Teknik Industri Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/tekmapro.v20i2.923

Abstract

This research investigates the impact of export sales, firm age, and revenue growth on the financial performance of manufacturing companies in the miscellaneous industry sector listed on the Indonesia Stock Exchange (IDX) during 2019–2023, while examining the moderating role of debt maturity. The research highlights the significance of growth strategies and debt structure management in enhancing firm performance amid global competition. A quantitative approach is employed using multiple linear regression and Moderated Regression Analysis (MRA) on a sample of 30 purposively selected companies over five years. The results show that export sales do not significantly influence financial performance, whereas firm age and revenue growth have a significant positive effect. Collectively, the independent variables significantly influence financial performance. Debt maturity moderates the relationship by strengthening the effect of revenue growth and weakening the effect of firm age, while it does not moderate the impact of export sales. These findings offer theoretical contributions to financial management literature and practical insights for corporate decision-makers in managing long-term debt and designing effective growth strategies. The research also lays the groundwork for future research involving external macroeconomic variables as potential moderators. Keywords : Export Sales, Firm Age, Revenue Growth, Financial Performance, ROA, Debt Maturity, ..Moderated Regression
Development of an Application Model for Solving the Vehicle Routing Problem (VRP) Using the Nearest Neighbour Approach Hajar, Granita; Fauzi, Muhammad Dzulfikar; Harnaningrum, Rizky Novera; Islami, Mega Cattleya P.A
Tekmapro Vol. 20 No. 2 (2025): TEKMAPRO
Publisher : Program Studi Teknik Industri Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/tekmapro.v20i2.924

Abstract

Optimalisasi distribusi merupakan salah satu bagian terpenting dalam logistik, dengan adanya optimalisasi pada bagian distribusi dapat menekan biaya logistik. Salah satu pendekatan untuk melakukan optimalisasi distribusi yaitu melalui penyelesaian masalah Vehicle Routing Problem (VRP). Biaya logistik salah satunya didapatkan dari jarak rute pengiriman. Penelitian menggunakan deskriptif kualitatif dengan yang mencakup identifikasi node (titik lokasi), jarak antar node, dan kapasitas kendaraan. Metode algoritma Nearest Neighbour digunakan dalam penyelesaian masalah VRP dan diimplementasikan melalui aplikasi yang dibangun menggunakan bahasa pemrograman Delphi. Tujuan utama penelitian ini adalah menghasilkan sebuah aplikasi untuk memudahkan pemahaman dan pembelajaran mengenai penyelesaian VRP. Hasil penelitian menunjukkan bahwa algoritma Nearest Neighbour dapat digunakan secara efektif untuk menyusun rute distribusi yang efisien. Aplikasi ini berguna sebagai media pembelajaran dalam mempelajari konsep distribusi logistik dan penggunaan algoritma Nearest Neighbour menunjukkan efisiensi dalam menyusun rute distribusi dalam skala sederhana.
THE EFFECT OF FIRM SIZE, ENVIRONMENTAL COST, AND CARBON EMISSION DISCLOSURE ON COMPANY PERFORMANCE Valencia, Valencia; Arsjah, Regina Jansen
Tekmapro Vol. 20 No. 2 (2025): TEKMAPRO
Publisher : Program Studi Teknik Industri Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/tekmapro.v20i2.945

Abstract

Perubahan iklim menjadi tantangan global yang mendesak dan telah memengaruhi kebijakan di tingkat nasional maupun internasional. Peningkatan suhu global, naiknya permukaan laut, dan meningkatnya intensitas bencana alam merupakan dampak nyata dari emisi gas rumah kaca, yang sebagian besar dihasilkan dari aktivitas industri dan penggunaan bahan bakar fosil. Indonesia tercatat sebagai salah satu negara penyumbang emisi karbon terbesar di dunia, khususnya dari sektor energi. Kondisi ini mendorong tuntutan bagi perusahaan untuk bertanggung jawab atas dampak lingkungan yang ditimbulkan. Penelitian ini dilakukan dengan tujuan untuk menganalisis pengaruh dari firmsize, environmental cost dan carbon emsission disclosure terhadap financial performance (ROA) pada perusahaan yang masuk dalam kelompok sektor energi yang terdaftar di Bursa Efek Indonesia untuk periode penelitian tahun 2021-2023. Desain penelitian yang digunakan adalah penelitian kausalitas yang bertujuan untuk menguji pengaruh dari variabel independen terhadap variabel dependen. Dengan struktur data gabungan data cross section dan data time series. Maka, model regresi yang digunakan adalah regresi data panel. Hasil temuan menunjukkan model yang terpilih adalah Random Effect Model (REM) dengan temuan penelitian yaitu ukuran perusahaan terbukti berpengaruh positif signifikan terhadap ROA, biaya lingkungan tidak terbukti berpengaruh negative signifikan terhadap ROA dan carbon emission disclosure terbukti berpengaruh negative signifikan terhadap ROA. Kata kunci: Kinerja Keuangan, Ukuran Perusahaan, Biaya Lingkungan, Pengungkapan Emisi Karbon
INVENTORY PLANNING ANALYSIS OF RAW MATERIALS FOR ANIMAL FEED USING THE MRP LOT SIZING TECHNIQUE AT CV. XYZ rahmawati, nur; Dean Tirkaamiana
Tekmapro Vol. 20 No. 2 (2025): TEKMAPRO
Publisher : Program Studi Teknik Industri Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/tekmapro.v20i2.963

Abstract

Material Requirement Planning (MRP) is a system used to organize and supervise production chain management, with the aim of managing the inventory of raw materials, components, and finished products in the manufacturing or production process. CV. XYZ has problems related to production delays caused by lack of raw material inventory. This study aims to ensure the right ordering schedule and minimize ordering costs at CV. XYZ by using the MRP method and lot sizing techniques, where the lot sizing techniques used are Least Unit Cost (LUC) and Least Total Cost (LTC). Based on the results of MRP calculations using the Least Unit Cost lot sizing technique, the total cost is Rp2,235,127 while the MRP method with Least Total Cost is Rp. 1,936,651. Thus, the MRP method with Least Total Cost has a smaller total cost than Least Unit Cost, so this is an effective solution in planning the inventory of animal feed raw materials at CV. XYZ.
Risk Assessment of Productivity Recovery Post Occupational Accident in Indonesia Anityasari, Maria; Bangsawan, Gung Made Arya; Wessiani, Naning Aranti
Tekmapro Vol. 20 No. 2 (2025): TEKMAPRO
Publisher : Program Studi Teknik Industri Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/tekmapro.v20i2.920

Abstract

Indonesia's public health provider, the Insurance Administration Organization (IAO), provides universal coverage for Work Accident Insurance. As an initiative, it has failed to support all workers. This study assesses productivity recovery risks and associated future costs following occupational accidents, employing risk management methods and scenario analyses to aid decision-making in Indonesia. Focusing on formal workers in Surabaya, this research examines the balance between government benefits and expected productivity rebound upon return. Six risk types are identified and analysed, while the most prevalent risks involve workers still undergoing treatment with uncertain outcomes. As existing coverage schemes risk negative cash flow and deficits, this study also calculates the budget needed for zero-accident targets and maximum compensation to balance government obligations and workers' remuneration. This study has successfully captured the critical factors that can lead to refining coverage and addressing financial shortfalls, allowing improved support for workers' recovery and return productivity.
A System Dynamics Approach to Strengthening Egg Supply Chain Resilience in Banten Saepullah, Asep; Febriani, Silvia; Ramdhani, Ade Yanyan
Tekmapro Vol. 20 No. 2 (2025): TEKMAPRO
Publisher : Program Studi Teknik Industri Universitas Pembangunan Nasional Veteran Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/tekmapro.v20i2.961

Abstract

The growing population of Banten Province, projected to surpass 13.5 million by 2035, is expected to drive increasing demand for affordable and accessible sources of staple protein, particularly eggs. Despite producing over 315 million kilograms of eggs in 2023, the regional egg supply chain faces significant challenges, including feed price volatility, poultry mortality, inadequate infrastructure, and fragmented policy coordination. These issues contribute to supply instability and price fluctuations, which in turn affect both producers and consumers. This study employs a system dynamics approach to develop a comprehensive model of the egg supply chain resilience in Banten Province, utilizing stakeholders’ perspectives through semi-structured interviews and focus group discussions, as well as mental models derived from comprehensive literature reviews. The constructed model reveals and elucidates critical feedback mechanisms within the egg supply chain, including the hen health investment loop, price-mediated mechanisms loop, and cost-induced constraints loop. The findings highlight the critical importance of policy interventions, particularly in the areas of subsidies, infrastructure development, access to financing, and poultry health initiatives to enhance the resilience of the egg supply chain in Banten. The proposed model offers actionable insights for policymakers and establishes a conceptual framework to support future research on the egg supply chain and food system resilience in Indonesia.

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