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All Journal Jurnal Teknik Industri Jurnal Optimasi Sistem Industri Journal Industrial Servicess Jurnal Ilmiah Teknik Industri Journal of Information Systems Engineering and Business Intelligence Jurnal Sistem dan Manajemen Industri PERFORMA : Media Ilmiah Teknik Industri Jurnal Ilmiah Ilmu Terapan Universitas Jambi
Thomy Eko Saputro
Universitas Muhammadiyah Malang
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

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Economic production quantity model with defective items, imperfect rework process, and lost sales Aprilianti, Chusnul; Garside, Annisa Kesy; Khoidir, Amelia; Saputro, Thomy Eko
Jurnal Sistem dan Manajemen Industri Vol. 8 No. 1 (2024): June
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/jsmi.v8i1.7580

Abstract

This study proposes an economic production quantity (EPQ) model that comprehensively addresses scrap items, imperfect quality items, rework processes, and shortages. The model incorporates various types of defective items, including scrap, imperfect quality, and rework able items, and implements immediate rework processes upon the completion of regular production. Shortages are treated as lost sales, enhancing the accuracy of inventory cost estimations. Numerical experiments demonstrate the opti­mal­ity of production lot sizes and underscore the impact of production and demand rate adjustments on overall inventory costs. Sensitivity analysis further elucidates the influence of imperfect quality items on inventory costs. This EPQ model offers a comprehensive approach to efficient and effective finished product inventory management by integrating consider­ations for scrap items, imperfect quality items, and rework processes. Addi­tionally, a furniture manufacturing company case is presented to illustrate the practical application of the proposed model.
Integration of Lean Six Sigma and Theory of Inventive Problem Solving for Minimizing Waste in Shuttlecock Industry Renggarsari, Rika Risma; Garside, Annisa Kesy; Rosiani, Tyas Yuli; Saputro, Thomy Eko
Jurnal Ilmiah Teknik Industri Vol. 22, No. 2, December 2023
Publisher : Department of Industrial Engineering Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/jiti.v22i2.23012

Abstract

In today's competitive business world, organizations are striving to improve their operations and stay ahead. Lean Six Sigma is a popular approach that helps optimize processes and reduce waste. This research focuses on using Lean Six Sigma and TRIZ together to reduce waste in the shuttlecock industry. The study uses a structured process and tools like Value Stream Mapping and Fault Tree Analysis to find and solve waste issues. The results show problems like unnecessary activities, delays, and defects in the production process. Using TRIZ, suggestions for improvements are made based on the analysis. This study shows that combining Lean Six Sigma and TRIZ can effectively reduce waste and improve processes. The findings add to our understanding of using these methods in the shuttlecock industry and offer insights for future research and improvements.
Enhanced Sustainability Assessment Framework for Plywood Manufacturing: A Multi-Method Approach Using Delphi Technique, BWM, and S-VSM Annisa Kesy Garside; Tyas Yuli Rosiani; Adelya Amanda; Thomy Eko Saputro; Eduardo e Oliveira
Jurnal Optimasi Sistem Industri Vol. 23 No. 2 (2024): Published in January 2025 (published late, please read our note)
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (604.955 KB) | DOI: 10.25077/josi.v23.n2.p188-206.2024

Abstract

Sustainable manufacturing has emerged as a critical priority in addressing the complex environmental, social, and economic challenges of modern industry. This study focuses on the plywood sector, a significant contributor to manufacturing, which faces distinct sustainability issues such as high energy consumption, material inefficiencies, and hazardous working conditions. To address these challenges, the research introduces workload and noise level as critical indicators for assessing sustainability, broadening the scope of traditional evaluation methods. A multi-method framework was employed, integrating the Delphi technique to identify key sustainability indicators, the Best Worst Method (BWM) to assign weights to these indicators, and Sustainable Value Stream Mapping (S-VSM) paired with a Traffic Light System (TLS) to evaluate and visualize the Manufacturing Sustainability Score (MSS). Applied to a plywood manufacturing case study, the framework highlighted areas requiring improvement, particularly in worker well-being and operational safety, while demonstrating the industry's moderate overall efficiency. By offering actionable insights for improving resource use, operational processes, and employee conditions, this framework provides a practical tool for industry managers aiming to enhance sustainability. Furthermore, its adaptability makes it a valuable reference for other manufacturing sectors seeking to implement resource-efficient and sustainable practices. This research not only fills critical gaps in sustainability assessment but also contributes to advancing industry practices by emphasizing holistic and innovative approaches to manufacturing efficiency.
SUPPLY MANAGEMENT, OPERATIONS AND MARKETING STRATEGIES FOR MSME SUSTAINABILITY: SYSTEMATIC LITERATURE REVIEW Sudjatmoko, Agung; Halid, Andi Mohammad Nurdin; Saputro, Thomy Eko; Suprapto, Adi Teguh
Jurnal Ilmiah Ilmu Terapan Universitas Jambi Vol. 9 No. 3 (2025): Volume 9, Nomor 3, September 2025
Publisher : LPPM Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jiituj.v9i3.45943

Abstract

This research aims to present a systematic literature review addressing the development of supply management, operations, and marketing strategies which can sustain the success of the sustainability implementation for MSMEs. Several papers is collected from the scholarly journals published in the last five years. The findings indicate that digital entrepreneurship assistance, which can help develop digital skills and create more sustainable business flows, plays a significant role for MSMEs to sustain their business sustainability. A sustainable marketing strategy can help MSMEs increase market access, especially using digital strategies, making it easier for MSMEs to reach a wider market. Our systematic literature review has a limitation. The discovery of the sustainability practice on MSMEs only focuses on three aspects including supply management, operations, and marketing strategy. To complement the limitation of the current study, future research lies on the comparative analysis of sustainability practice on MSMEs and larger enterprises by considering other essential aspects including finance, human resources, and competitiveness. Operational management for MSMEs, especially MSMEs in the food sector, is also key in maintaining business operations during the COVID-19 pandemic. This study discuss, further using the Systematic Literature Review method to highlight Supply management, operations and marketing strategies for the sustainability of MSMEs so that they become a reference for business actors in developing their businesses and also for new business actors, of course, especially for policymakers in empowering and MSME development.
Improving tofu product quality through the integration of the Kano model and Quality Function Deployment (QFD) Dinda Finandita Putri; Annisa Kesy Garside; Thomy Eko Saputro; Tyas Yuli Rosiani; Mohd Nabil Bin Muhtazaruddin
Journal Industrial Servicess Vol 12, No 1 (2026): April 2026
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jiss.v12i1.32596

Abstract

Many MSMEs struggle with process variations and inconsistent quality in the highly competitive tofu manufacturing industry. Problems such as unpleasant odors, inconsistent cut sizes, and irregular textures damage customer satisfaction and affect market competitiveness. In light of this, the aim of this study is to provide a systematic framework for identifying and prioritizing high-risk quality attributes in tofu products, using the case study in an MSME. Hence, this research develops a holistic approach that integrates the Kano model and Quality Function Deployment (QFD) to translate customer requirements into measurable technical actions. A survey of 73 respondents to the study identified 12 product attributes, classified into must-be, one-dimensional, and attractive attributes. So, these attributes were inserted in the HoQ-related matrix from which eight technical responses were ranked as mentioned before: high-quality soybean selection, elimination of chemical preservatives, boiling temperature control, and use of food-grade packaging materials. This integration provides a quantitative and systemic basis for process standardization in artisanal food production. It helps MSMEs establish an overarching strategic direction towards product consistency and, subsequently, competitiveness through data-driven quality improvement strategies.
Pemilihan Supplier dengan Metode Step-Wise Weight Assessment Ratio Analysis dan Extended Promethee II Hidayat, Arief; Garside, Annisa Kesy; Saputro, Thomy Eko
Performa: Media Ilmiah Teknik Industri Vol 22, No 2 (2023): Performa: Media Ilmiah Teknik Industri
Publisher : Industrial Engineering, Faculty of Engineering, Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/performa.22.2.78266

Abstract

Pertumbuhan bisnis dalam bidang konstruksi di Indonesia berkembang pesat, sehingga membuat persaingan bisnis bertambah khususnya Kalimantan Timur. Salah satu kegiatan yang penting bagi perusahaan konstruksi adalah melakukan pengadaan persediaan bahan baku. Ketersediaan bahan baku merupakan faktor penting yang harus diperhatikan agar proses produksi dapat berjalan dengan baik. Untuk menjaga kelangsungan proses produksi, perusahaan bekerjasama dengan supplier bahan baku yang tepat agar dapat menyediakan bahan baku saat dibutuhkan. Tujuan dari penelitian ini adalah mengidentifikasi kriteria dan sub kriteria yang tepat dan menentukan supplier terbaik yang dapat diterapkan segera oleh PT Balikpapan Ready Mix Pile. Hasil dari penelitian ini terdapat 6 kriteria dan 15 sub kriteria terpilih untuk menentukan supplier yang tepat. Metode Step-Wise Weight Assessment Ratio Analysis digunakan untuk menentukan bobot kriteria dan sub kriteria. Sub kriteria paling penting dalam pemilihan supplier adalah kualitas bahan dengan nilai bobot sebesar 0,2639. Selanjutnya, hasil pengolahan data dengan Extended Promethee II diperoleh alternatif supplier terbaik adalah alternatif A2 dengan nilai prioritas sebesar 0,2692
Co-Authors Adelya Amanda Amelia Khoidir Annisa Kesy Garside Aprilia Prihatina Aprilia Prihatina, Aprilia Aprilianti, Chusnul Arief Hidayat Chusnul Aprilianti Dian Anggraini Dinda Finandita Putri Dinita Rahmalia, Dinita Eduardo e Oliveira Gigih Amayu Pragastio Halid, Andi Mohammad Nurdin Ilyas Masudin Mohd Nabil Bin Muhtazaruddin Muhammad Faisal Ibrahim Muhammad Faisal Ibrahim, Muhammad Faisal Renggarsari, Rika Risma Shanty Kusuma Dewi Sudjatmoko, Agung Suprapto, Adi Teguh Teguh Herlambang Tyas Yuli Rosiani Tyas Yuli Rosiani