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All Journal Jurnal Manajemen Teknologi Journal of Business and Management The Indonesian Journal of Business Administration Journal of Engineering and Management in Industrial System Journal of Regional and City Planning Jurnal Ekonomi & Studi Pembangunan EKOMBIS REVIEW: Jurnal Ilmiah Ekonomi dan Bisnis The Asian Journal of Technology Management (AJTM) International Research Journal of Business Studies (E-Journal) International Journal of Supply Chain Management Jurnal Darma Agung International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) Automotive Experiences Indonesian Journal of Multidisciplinary Science Jurnal Locus Penelitian dan Pengabdian The South East Asian Journal of Management Journal Research of Social Science, Economics, and Management Cerdika: Jurnal Ilmiah Indonesia Journal of Business, Social and Technology Eduvest - Journal of Universal Studies International Journal of Entrepreneurship and Sustainability Studies IIJSE Journal Integration of Management Studies International Research Journal of Business Studies Jurnal Bisnis dan Pemasaran Digital International Journal of Accounting and Management Information Systems
Gatot Yudoko
Sekolah Bisnis dan Manajemen ITB
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Neuroscience Public Health Social Sciences Transportation Other

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The Design of Project Procurement Management to Improve Company Performance Project (Study Case: Warehouse Manufacture) Armanda Putra, Mochammad Ravi; Yudoko, Gatot; Hanafi, Muhammad
Cerdika: Jurnal Ilmiah Indonesia Vol. 5 No. 10 (2025): Cerdika: Jurnal Ilmiah Indonesia
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/cerdika.v5i10.2687

Abstract

The Indonesian construction industry continues to face significant challenges related to project delays, especially in warehouse manufacturing projects. These delays often result in increased costs, reduced quality, and weakened stakeholder trust. This research aims to analyze the primary causes of delays in the warehouse construction project of PT. WMA and to design a procurement management framework that improves project performance. By conducting qualitative methods such as group discussions, the study identifies key contributing factors, including poor planning, weak interdepartmental coordination, supplier delays, and insufficient procurement monitoring. Root cause analysis was conducted using the Current Reality Tree (CRT), revealing that the lack of effective procurement management was the central issue. The study proposes a comprehensive procurement management framework based on the PMBOK 6th Edition, emphasizing the importance of planning, executing, and controlling procurement processes. Implementation of this framework is expected to reduce project delays and enhance the overall performance of construction projects. The findings not only contribute to academic knowledge but also provide practical recommendations for improving procurement practices in Indonesia’s construction sector.
Sustainable Performance Model and Strategy: A Conceptual Framework Arifin, Firmansyah; Wiryono, Sudarso Kaderi; Damayanti, Sylviana Maya; Yudoko, Gatot
International Journal of Entrepreneurship and Sustainability Studies Vol. 3 No. 2 (2023): December 2023
Publisher : Research Synergy Foundation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31098/ijeass.v3i2.1904

Abstract

This study is driven by the conditions of the energy sector, particularly the "oil field service industry" which serves as the main pillar of this sector. The significant oil price drop and the need for cost-cutting among oil and gas producers shows the vulnerabilities in this sector, necessitating improvement. Generally, industries that support key commodities must exhibit strong operational performance that intricately intertwines with the corporate strategy, mitigating potential obstacles, challenges, and business risks in order to achieve sustainable performance. Thus, this research aims to investigate how to develop a sustainable performance model for the industry in helping the industries the current and future business challenges. A systematic literature review was undertaken, encompassing prior studies on sustainable business, performance, and risk management strategies. This study investigates the dynamic interaction between three primary constructs: (1) context-business sustainability, (2) content-performance management, and (3) process-strategy formulation. Finally, gaps in the existing literature were identified and several future research directions were proposed.
The Design Of Project Risk Management To Mitigate Project Delay In the Onshore Construction Industry (Case: Shore Protection Project)CTION INDUSTRY (CASE: SHORE PROTECTION PROJECT) Muhammad, Firdaus Yusri; Yudoko, Gatot; Hanafi, Muhammad
Journal of Business Social and Technology Vol. 6 No. 2 (2025): Journal of Business, Social and Technology
Publisher : Politeknik Siber Cerdika Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59261/jbt.v6i2.518

Abstract

This study aims to design a project risk management system to mitigate delays in the land-based construction industry, using a case study of the PT Sabar Sejahtera coastal protection project. The project experienced a three-month delay, resulting in financial losses and lost business opportunities due to a lump-sum contract. The methods employed included both qualitative and quantitative approaches, with primary data collected through focus group discussions with project stakeholders and secondary data sourced from internal company documents. Root cause analysis used a Current Reality Tree (CRT) to identify the causes of delays, while solutions were visualized through a Future Reality Tree (FRT). Risk evaluation was conducted using a Failure Mode and Effects Analysis (FMEA) to calculate the Risk Priority Number (RPN), as well as the application of a risk management framework based on the PMBOK 6th Edition. The results showed that the leading causes of delays were systematic errors at the tendering and planning stages, as well as the unavailability of a risk mitigation plan. These two factors caused a domino effect on procurement, equipment, schedules, and the confidence of the main contractor. Proposed solutions included improving the tendering and planning system by involving various departments early and implementing the complete PMBOK risk management cycle. The implications of this study highlight the importance of a structured risk management system in preventing similar project delays in the future. This study also provides strategic guidance for improving the efficiency and control of construction projects in complex work environments.
Proposed contract manufacturing strategy for Baby Food Industry using Kepner-Tregoe and Analytic Hierarchy Process (AHP) Approach Zahara, Dhenok Puspita; Yudoko, Gatot
International Journal of Accounting and Management Information Systems Vol. 2 No. 1 (2024): February
Publisher : Goodwood Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/ijamis.v2i1.3044

Abstract

Purpose: This study aims to determine the most appropriate contract manufacturing strategy for PT. SA to ensure sustainable fulfillment of its MA baby food products, amidst regulatory changes and operational risks from overseas production. Methods: A mixed-method approach was employed, integrating qualitative methods (interviews and FGDs with Subject Matter Experts using Kepner-Tregoe and Why Tree analysis) and quantitative techniques through the Analytic Hierarchy Process (AHP). The criteria used for decision-making included cost, schedule, delivery, capacity, capability, and quality. Results: The AHP analysis identified schedule (32.95%) and cost (30.31%) as the most influential criteria. For short-term resolution, the strategy “Produce in existing contract manufacturing and distribute using a 3rd party trader” scored the highest (49.56%). For long-term sustainability, “Terminate existing manufacturing and produce in alternative local contract manufacturers in Indonesia” was the optimal choice (31.55%). Conclusion: Selecting the right strategy helps mitigate sales loss risk (up to IDR 97 billion annually), ensures product availability, and aligns with government import restrictions. Each alternative was evaluated for feasibility, risks, and potential savings. Limitation: This study is specific to PT. SA’s baby food segment and may not fully generalize to other industries or products with different supply chain dynamics or regulatory constraints. Contribution: The study contributes a structured decision-making model using Kepner-Tregoe and AHP to optimize contract manufacturing strategies, supporting firms in navigating supply chain disruptions under regulatory pressure.
OEE improvement through reducing start up duration using lean six sigma methodology in manufacturing Khisbulloh, Wijaya; Yudoko, Gatot
International Journal of Accounting and Management Information Systems Vol. 2 No. 2 (2024): August
Publisher : Goodwood Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/ijamis.v2i2.3225

Abstract

Purpose: This research focuses on improve OEE by reducing start-up duration using Lean Six Sigma methodology. By applying Lean Six Sigma tools and techniques, manufacturers can systematically analyse the start-up process, identify root causes of delays, and implement targeted improvements. Methodology/approach: The research presented in this journal comprises a comprehensive study conducted within a manufacturing setting to demonstrate the effectiveness of the proposed approach. The study involves the collection and analysis of data related to start-up durations, downtime reasons, and other relevant parameters. Through the DMAIC (Define, Measure, Analyse, Improve, Control) framework of Lean Six Sigma, the root causes of prolonged start-up durations are identified and addressed. Results: The results demonstrate the potential for significant OEE improvements through the elimination of bottlenecks and inefficiencies in the start-up process. Manufacturers can leverage the findings of this research to develop strategies that enhance operational effectiveness, increase production output, and ultimately drive competitive advantage in the dynamic landscape of modern manufacturing. Conclusions: Lean Six Sigma, through the DMAIC approach, effectively reduces start-up time and improves OEE. Addressing root causes leads to better equipment utilization and increased productivity. Limitations: This research limitation is only for manufacturing or production area that having OEE as their main key performance indicator. Contribution: This research will contribute to the manufacturing operation excellency.
Proposed Implementation of Lean Construction in Project Management Procedures in the Preparation of Project Work Plans (A Case Study of PT ICC TBK.) Yudoko, Gatot; Pangestu, Rifki Rahmadian
Eduvest - Journal of Universal Studies Vol. 6 No. 1 (2026): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v6i1.52348

Abstract

This study proposes the integration of Lean Construction principles into the Project Work Plan (RKP) procedure of PT ICC (Persero) Tbk to enhance project efficiency and minimize waste. Despite having a comprehensive project management framework based on PMBOK, inefficiencies persist in PT ICC’s operations due to reactive, administratively driven planning practices. Using a mixed-method approach—combining process mapping, in-depth interviews, expert judgment, and quantitative analysis through the Relative Importance Index (RII) and Spearman correlation—this research identifies key sources of waste, including waiting, overproduction, inventory, and underutilized talent. The study develops a revised RKP framework that integrates Lean tools such as the Last Planner System (LPS), Pull Planning, and Just-in-Time (JIT) procurement synchronization. Findings indicate that the implementation of Lean Construction can potentially improve time efficiency by up to 20% and reduce material waste by over 10%, while enhancing collaboration and workflow predictability. However, successful adoption requires cultural transformation supported by strong leadership commitment, practical training, and sustained change management efforts.
Design of Project Risk Management to Mitigate Project Delay in the Onshore Construction Industry Muhammad, Firdaus Yusri; Yudoko, Gatot; Hanafi, Muhammad
Journal of Business Social and Technology Vol. 6 No. 2 (2025): Journal of Business, Social and Technology
Publisher : Politeknik Siber Cerdika Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59261/jbt.v6i2.518

Abstract

Background: Project delays remain a critical issue in the land-based construction industry, often leading to financial losses and missed business opportunities, particularly under lump-sum contract schemes. The coastal protection project undertaken by PT Sabar Sejahtera experienced a three-month delay, indicating weaknesses in risk management practices during the early stages of the project. Aims: This study aims to design a structured project risk management system to mitigate schedule delays in land-based construction projects through a case study of the PT Sabar Sejahtera coastal protection project. Methods: A mixed-method approach combining qualitative and quantitative techniques was employed. Primary data were collected through focus group discussions (FGDs) with key project stakeholders, while secondary data were obtained from internal company documents. Root cause analysis was conducted using a Current Reality Tree (CRT) to identify the main causes of project delays, and proposed solutions were developed using a Future Reality Tree (FRT). Risk evaluation was performed using Failure Mode and Effects Analysis (FMEA) to calculate the Risk Priority Number (RPN), supported by the application of a project risk management framework based on the PMBOK 6th Edition. Result: The findings indicate that the primary causes of project delays were systematic errors during the tendering and planning stages, as well as the absence of a formal risk mitigation plan. These factors generated a domino effect that adversely affected procurement processes, equipment availability, project scheduling, and the main contractor’s confidence. Conclusion: The study concludes that implementing an integrated and comprehensive risk management system from the early stages of a project is essential to prevent similar delays in the future. Enhancing tendering and planning processes through early cross-departmental involvement and applying the full PMBOK risk management cycle can significantly improve project efficiency and control in complex construction environments.
A Structured Decision Framework for Improving Solar PV Integration and Frequency Stability Using Kepner–Tregoe and Analytical Hierarchy Process: A Case Study of PT OEC Hidayat, Saiful; Yudoko, Gatot
Jurnal Locus Penelitian dan Pengabdian Vol. 5 No. 1 (2026): JURNAL LOCUS: Penelitian dan Pengabdian
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/locus.v5i1.5521

Abstract

The increasing penetration of solar photovoltaic (PV) generation in industrial power systems provides significant opportunities for fuel reduction and sustainability improvement. However, high PV penetration also introduces operational challenges related to power variability and grid frequency stability, particularly in systems with limited inertia and spinning reserve. This study proposes a structured managerial decision framework to address solar PV integration challenges at PT OEC by combining Kepner–Tregoe (KT) problem analysis and the Analytic Hierarchy Process (AHP). Solar PV performance and grid frequency behavior were first analyzed to identify whether observed disturbances were caused by technical failure or structural system limitations. KT analysis was then applied to validate the root causes of frequency instability events. Based on the identified causes, four alternative solutions were evaluated using AHP across multiple criteria, including frequency stability improvement, PV energy yield impact, investment cost, implementation complexity, and operational maintainability. The results indicate that Battery Energy Storage System (BESS) is the most preferred strategic solution, followed by gas turbine spinning reserve optimization and PV–GT coordination procedures. Sensitivity analysis confirms that while BESS dominates under reliability-focused priorities, operational measures remain relevant under cost- and time-constrained scenarios. The study demonstrates that combining KT and AHP provides a robust decision-making framework for balancing reliability, cost, and long-term value in solar PV integration.
CONTINUOUS IMPROVEMENT OF DRILLING ULTRA-SHALLOW HORIZONTAL WELL THROUGH LEAN SIX SIGMA METHODOLOGY Wahyudi, Petrus Tri; Yudoko, Gatot
JEMIS (Journal of Engineering & Management in Industrial System) Vol. 7 No. 2 (2019)
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jemis.2019.007.02.4

Abstract

Low oil price environment impacted to business of Oil and Gas Company including PT. SDEC. However, PT. SDEC was able securing limited and fixed capital budget to drill well and had committed to drill certain well number to Government of Indonesia. When the initial 12 wells were completed with longer cycle time (average 9.9 days/well) than business plan (7.5 days/well) and also higher cost, the problem became more complex because company need to complete well as per commitment and in other hand no additional capital will be spent by parent company if actual expenditure exceeded the initial budget. Company assigned a team to solve the problem through Lean Six Sigma. Through strong collaboration among team, the project execution performance was improved (the Cp of drilling cycle time was improved from 0.06 to 1.08). As the result of this project save cost around $ 2.8 million.
STATISTICAL PROCESS CONTROL IMPLEMENTATION AS EARLY WARNING SIGNAL FOR SAFETY INTERVENTION IMPROVEMENT AT MINING OPERATION Nugraha, Arya; Yudoko, Gatot
JEMIS (Journal of Engineering & Management in Industrial System) Vol. 8 No. 2 (2020)
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

As the frequency, severity, and costs of safety risks continue to become a challenge for mining industry, the company understood that the existing safety analytic does not provide adequate information, as it has been relying predominantly on collecting and evaluating aggregated data of lagging indicators about past accidents. This method has been negatively driving the organization to carry out repetitive cycle of accident analysis and problem solving, and therefore, undertaking reactive responses. This paper investigated how statistical process control, in particular control charts, can be applied to hazards data, as the leading indicator of accidents, to detect statistically trends in safety process and safety behavior, aiming to control the safety process in real-time manner before the occurrence of accidents. The result showed that the latest iteration of control limits development in Phase 3 is suitable as the control chart for safety process in one of case study mine operation site. Furthermore, the implementation of control charts to hazards data not only it helps the organization to transition its safety analytic to leading indicator analysis, it enables the organization to control safety process in real-time practice and to carry out timely safety intervention long before the potential occurrence of severe accidents, in which within this case, the first early warning signal was triggered 49 days before the occurrence of the fatality accident.
Co-Authors Abimanyu, Cristian Abizar, Muhammad Rival Agung Pascasuseno Agus Suwarto Agus, Anna Amalyah Aji Nugraha Pratama Alberto, Richard Ananto Veryadesa, Ananto Andini, Trisnawati Anugrah Wangsa, Airin Ardiansyah, Pandu Zea Ariawan, Yona Arie Rachmadi Djunaedi Armanda Putra, Mochammad Ravi Arya Nugraha Astrid Hapsari Ningrum, Astrid Hapsari Aya Ishigaki Azizah, Mutiara Alena Bartholomeus Dewantoro Bayu Ananta Perwira, Bayu Ananta Benny Pahala Hutahaean Candrasmurti, Awindya Cashiwan, Cashiwan Daniel Happy Putra Dewi, Nurlaela Kumala Dewi, Nurlaela Kumala Dian Ekawati Eidelweijs A Putri Eko Agus Prasetio ES Heru Praptono, ES Heru Fadila Rusman, Denia Firmansyah Arifin, Firmansyah Firra Astria Noezar Fortranansi Firdaus, Devin Grimaldi, Gemma Hari Lubis Heru Purboyo Hidayat Putro Imaniya**, Taliya Imaniya, Taliya Isti R Mirzanti Jasmine, Tamara Latifah Kembaren, Pennoh Philips Kenji Koido Khisbulloh, Wijaya Kiyoshi Dowaki Krishna Permadi Krisna Uvala Hardi Kurniawan, Muslim El Hakim Kurniawan, Muslim El Hakim Kusnadi, Asana Kusuma Anuraga, Hilarius Yuda Kusumawardani, Farah Almira Lesmana, Haris Lestari, Ayu Gema LIANE OKDINAWATI, LIANE Limowa, Agung lqsan Diaz Mariany W Lidia Miharja, Miming Miharja, Miming Miming Miharja Mudya, Dinda Ratna Muhamad Ibnu Fauzi Muhammad Hanafi Muhammad, Firdaus Yusri Mulyono*, Nurbudi Mursyid Hasan Basri Nafila, Revina Nida Natalia, Natalia Nur Budi Mulyono Nurlaela Kumala Dewi Pangestu, Rifki Rahmadian Parcelino Prabowo, Rommy Paseru, Alvito Tirano Permana, Tirta Wisnu Pradono, Pradono Pratiwi, Ratna Endah Prilandita, Niken Putra, Anar Arsyid Wali Masâ??ud Reyhan Zachary, Reyhan Rima Beladina Subekti, Rima Beladina Ruhaiya, Fikka Saiful Hidayat Sanusi, Dudu Anwar Satria Yoelis Wardhana, Satria Yoelis Sitadewi, Dania Sony Susanto Stepanus Ady Triwidodo Sudarso Kaderi Wiryono Sulyani, Agnesia Candra Suprapto, Juny Surna Tjahja Djajadiningrat Surya Ibrahim Irsyam Sylviana Maya Damayanti Takeshi Arai Tatag Muttaqin Togar M Simatupang Wahyu Wirawan Wahyudi, Petrus Tri Wanda Listiani Widjajani Widjajani Yuanita Handayati Zahara, Dhenok Puspita