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All Journal Journal of Business and Management The Indonesian Journal of Business Administration The Asian Journal of Technology Management (AJTM) Hasanuddin Economics and Business Review Jurnal EMT KITA Syntax Literate: Jurnal Ilmiah Indonesia Journal of Economic, Bussines and Accounting (COSTING) Journal of Innovation, Business and Entrepreneurship International Journal of Applied Business Research Inovasi: Jurnal Ilmiah Ilmu Manajemen Dinasti International Journal of Education Management and Social Science Community Engagement and Emergence Journal (CEEJ) Jurnal Syntax Transformation Journal of Research in Social Science and Humanities Co-Value : Jurnal Ekonomi, Koperasi & Kewirausahaan Inkubis: Jurnal Ekonomi dan Bisnis Journal Research of Social Science, Economics, and Management KOLONI Eduvest - Journal of Universal Studies Engagement: Jurnal Pengabdian Kepada Masyarakat Jurnal Bisnis dan Pemasaran Digital Studi Akuntansi dan Bisnis Indonesia
Akbar Adhi Utama
Institut Teknologi Bandung
Religion Aerospace Engineering Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Neuroscience Public Health Social Sciences Other

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Service Enhancement Opportunity Of Design And Build Project In Trans Papua Project Fitriana Prahastiwi Pramono; Akbar Adhi Utama
Hasanuddin Economics and Business Review VOLUME 10 NUMBER 1, 2026
Publisher : Faculty of Economics and Business, Hasanuddin University, Makassar, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26487/hebr.v10i1.6813

Abstract

This study examines how design-review inefficiencies in a design-and-build infrastructure project can be reduced through process reengineering and digital collaboration, using the Trans Papua Project as an empirical case. A mixed-methods case study was employed by combining quantitative project-control analysis and qualitative process diagnosis. Schedule Performance Index and Schedule Variance were calculated from verified monthly progress reports, while semi-structured interviews with project personnel were analysed using qualitative content analysis. The study then integrated stakeholder analysis, Process Chain Network, value co-creation, DART-PDCA, Building Information Modelling within a Common Data Environment, and Analytical Hierarchy Process to evaluate alternative process-redesign scenarios. The findings show that schedule risk was driven not only by construction productivity constraints but also by technical data misalignment, sequential review routines, and fragmented stakeholder interfaces. Among three PCN alternatives, Alternative 1 was prioritised because it balanced formal design-consultant involvement, contractor-led cost and constructability evaluation, parallel submission of design alternatives, process efficiency, and stakeholder acceptance. Its short-term implementation improved SPI from 1.11 in June 2025 to 1.17 in September 2025. This study contributes to design-and-build infrastructure governance by demonstrating how PCN and BIM-CDE can transform sequential design review into a more collaborative, traceable, and parallel decision-making process in Indonesian public-private infrastructure delivery.
Optimizing Pipeline Inspection Program To Balance Safety, Compliance, And Cost Efficiency: A Case Study At Petrotama Primasatria Zhes Putra; Akbar Adhi Utama
Eduvest - Journal of Universal Studies Vol. 5 No. 10 (2025): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i10.51386

Abstract

PetroTama operates an extensive pipelines network to support the production of 160,000 barrels of oil per day, equivalent to 26% of Indonesia’s daily production. These pipelines are used as a main oil transportation system in PetroTama, making it one of the main critical assets to sustain production performance. In order to maintain the production capacity, PetroTama has to ensure that the entire pipelines network operates safely and reliably that can only be achieved by implement robust pipeline inspection program. However, currently PetroTama is facing a significant gap with only 37% of its pipeline network inspected to date and leaving 5,480 km of pipelines having no inspection data. This condition also exposes PetroTama to serious impacts related to safety, compliance, and cost efficiency. The objective of this study is to evaluate the current conditions, identify root causes, and propose potential business solution for optimizing PetroTama’s pipeline inspection program by following DMAIC (Define, Measure, Analyze, Improve, Control) methodology. The main causes of the problems are assessed by utilizing Current Reality Tree (CRT) that reveals two primary root causes: budgetary constraints and the absence of regular improvement on the inspection program. The solution for this study is focused on the improvement of inspection program, since the budget availability is considered as a given condition. The Analytical Hierarchy Process (AHP) combined with Spreadsheet Simulation are used to find the best potential business solutions for the problems.
Minimizing Excess Inventory and Its Impact by Enhancing Forecasting Accuracy Rizki Aditia; Akbar Adhi Utama
Eduvest - Journal of Universal Studies Vol. 5 No. 12 (2025): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i12.51855

Abstract

This study examines how PT. TRUCKSTORS LANCAR ABADI can improve inventory management by addressing recurring sales forecasting issues. Despite extensive research on forecasting in manufacturing, there is a notable gap in understanding how to manage seasonal demand patterns in Indonesia's heavy equipment sector using integrated forecasting methods. This gap is especially clear in the lack of validated models tailored to capital-intensive industries with volatile demand cycles. Using both qualitative and quantitative approaches, the study began by gathering insights from key departments and applying the Analytic Hierarchy Process (AHP). The analysis identified inaccurate forecasts as the primary cause of inventory discrepancies. To address this, several forecasting models were tested. SARIMA emerged as the most effective, capturing seasonal demand fluctuations with a Mean Absolute Percentage Error (MAPE) of 15.3% and a Mean Absolute Error (MAE) of 257 units. This outperformed alternatives such as Multi-Linear Regression (MAPE: 18.7%), Neural Networks (MAPE: 19.4%), and XGBoost (MAPE: 20.1%). Implementing SARIMA is projected to reduce interest loss by 88% (from USD 3.32 million to USD 0.39 million) and inventory holding costs by the same margin (from USD 9.64 million to USD 1.13 million annually). This model is expected to improve planning accuracy and better align projected inventory with actual levels. The study highlights the importance of integrated planning, cross-functional collaboration, and data-driven forecasting for Minimizing Excess Inventory and Its Impact by Enhancing Forecasting Accuracy in volatile markets
Reducing the Procurement Lead Time for Agreed Stock Item in Procurement Division of PT Alami Mandala Indonesia Ganes Agni Wibisono; Akbar Adhi Utama
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.v6i1.52048

Abstract

This study investigates the persistent delays in procurement lead time for Agreed Stock Items (AGSI) within the Procurement Division of PT Alami Mandala Indonesia (AMI). AGSI refers to repeat-order materials that are already agreed upon in specification and usage, and therefore, ideally should be processed swiftly. However, data revealed that the actual PR to PO lead time consistently exceeds the company's OKR target of 14 days, creating operational inefficiencies, potential equipment downtime, and financial losses. This issue is especially critical in the context of AMI's mining operations, which are highly dependent on timely and uninterrupted supply of materials to sustain production activities. A mixed-methods research approach was adopted, combining qualitative insights from semi-structured interviews with procurement personnel and quantitative analysis of historical procurement data from SAP ERP systems spanning 2023–2024. Through this approach, the study identified key bottlenecks including repetitive manual bidding processes for the same items, incomplete or unclear material specifications, limited supplier pools, and logistical difficulties stemming from the company's remote mining sites. These issues were further structured and analyzed using a Fishbone Diagram and Current Reality Tree (CRT) to identify root causes and systemic weaknesses. To address these challenges, a set of alternative solutions was developed and evaluated using a weighted scoring method based on four criteria: potential for lead time reduction, implementation effort, cost implications, and impact on material availability. Among these, the implementation of Long Term Agreements (LTAs) with key suppliers was identified as the most feasible and impactful solution.
Servqual-Based Service Quality Optimization to Drive Profit Growth at ITTR English Course Shelby Riani Altinia; Akbar Adhi Utama
Eduvest - Journal of Universal Studies Vol. 6 No. 6 (2026): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v6i6.53298

Abstract

A long standing English language school in Indonesia called ITTR English Course has seen flat profits even though student numbers have remained steady, which suggests there are deep problems with the quality of its services. The goal of this research is to assess current service standards and develop strategic improvements that will boost student satisfaction, increase retention, and lift the institution's financial performance. Using a sequential explanatory mixed-methods approach, this research combined quantitative SERVQUAL surveys analyzed through Structural Equation Modeling (SEM) with qualitative NVivo analysis to pinpoint service issues. Problems were diagnosed using Fishbone and Current Reality Tree (CRT) methods, ranked through Analytic Hierarchy Process (AHP), and addressed by developing action strategies with the House of Quality (HOQ) and the Plan–Do–Check–Act (PDCA) framework. Based on the study, student satisfaction is most heavily influenced by the reliability and assurance aspects of service quality. Satisfied students then become loyal customers, which directly supports the institution's bottom line. The author recommends focusing on teacher training, classroom facilities, and communication speed, alongside implementing scheduled feedback systems. In conclusion, managing service quality effectively is demonstrated to be the best way to secure ongoing student fulfillment, retention, and profitability.
Strategic Optimization to Enhance Effective Jetty Operations at Kertapati Port Luthfi Sukmadanu; Akbar Adhi Utama
Community Engagement and Emergence Journal (CEEJ) Vol. 6 No. 5 (2025): Community Engagement & Emergence Journal (CEEJ)
Publisher : Yayasan Riset dan Pengembangan Intelektual

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/ceej.v6i5.9183

Abstract

This study addresses operational challenges at Kertapati Port, where barge delays, poor stakeholder coordination, and lengthy administrative processes hinder efficiency. Using the Current Reality Tree (CRT) analysis, the research identifies root causes that reduce jetty throughput and extend vessel waiting times, leading to higher operational costs. To overcome these issues, three solutions were proposed: (1) developing integrated Standard Operating Procedures (SOPs) for berthing/unberthing and administration, (2) adding standby tugboats to ensure smoother berthing operations, and (3) decentralizing administration through an operational office at the jetty. The Analytical Hierarchy Process (AHP) was applied to prioritize these alternatives, while financial feasibility was evaluated using Net Present Value (NPV) and Internal Rate of Return (IRR). Results indicate that implementing integrated SOPs is the most effective solution, significantly reducing idle time and enhancing loading and unloading processes. A 2025 field trial of draft SOPs improved coal loading efficiency to an average of 500 MT/hour, with potential for notable annual throughput growth. Cost simulations suggest savings of thousands of USD per month, mainly by lowering demurrage costs. Furthermore, a real-time digital monitoring system has improved coordination, administrative speed, and schedule accuracy. The study recommends continuous evaluation using Key Performance Indicators (KPIs) and the Theory of Constraints (TOC) to sustain improvements and foster future innovations.
Mudlogging Service Performance Evaluation In Offshore Mahakam: A Case Study on The Consortium Contract Within PT PHM Rio M A Sitorus; Akbar Adhi Utama
Journal Research of Social Science, Economics, and Management Vol. 4 No. 9 (2025): Journal Research of Social Science, Economics, and Management
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jrssem.v4i9.807

Abstract

PT Pertamina Hulu Mahakam (PHM) is an oil and gas exploration and production operator in the Mahakam block, East Kalimantan, and conducts drilling operations for development and exploration wells using five offshore rigs. Mudlogging services are crucial for real-time geological monitoring and operational safety in offshore drilling. Mudlogging plays a crucial role in maintaining well integrity and enhancing drilling efficiency. From 2019, these services have been delivered through two major contracts, one awarded to PTGI and the other to a consortium between PTEN and PTGS. However, the second period (2022-2024) saw a sharp decline in performance, resulting in an estimated USD 350,000 in rig standby costs. This research aims to identify the root causes of the decline in mudlogging performance and propose practical improvement strategies to restore operational reliability and minimize non-productive time (NPT). A mixed-method approach was adopted, combining structured interviews with key stakeholders, and Likert-scale questionnaires were collected from the stakeholders and expert. Qualitative data analysis, utilizing root cause methodologies, fishbone diagrams, and current reality trees (CRTs), revealed that the absence of clear governance structures and role clarity led to weak coordination, delayed decisions, ineffective communication, and inadequate technical oversight. Insufficient training, high turnover, and limited motivation among contracted personnel in one of the consortium company were also identified as contributing factors in this research. The analytic hierarchy process (AHP) was applied to prioritize improvement strategies, with restructuring the consortium scoring highest and training enhancement being the most impactful levers for restoring performance.
OPERASI BERKELANJUTAN BERBASIS NILAI YANG DIDORONG OLEH ALAT OTOMATISASI DIGITAL TERINTEGRASI DAN ANALITIK DATA Jerry Tirta; Akbar Adhi Utama
Journal of Economic, Bussines and Accounting (COSTING) Vol. 8 No. 6 (2025): COSTING : Journal of Economic, Bussines and Accounting
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/kn2fyx74

Abstract

Di era yang berpusat pada pelanggan ini dan sebagai perusahaan kimia, proses yang stabil dan kualitas produk yang konsisten menjadi penting dan perlu dipastikan untuk kepuasan pelanggan. Jaminan kualitas adalah pintu gerbang di mana pelanggan dapat terhubung dan merasa puas bahkan mendapatkan pengalaman terbaik. Pada saat yang sama, keunggulan kompetitif dibandingkan pesaing dapat diperoleh dengan peningkatan dan pengurangan aktifitas yang tidak menambah nilai. Dengan mempertimbangkan berbagai hambatan yang muncul dalam peningkatan kinerja perusahaan, banyaknya pemborosan, meningkatnya keluhan pelanggan, dan tingkat ketidaksesuaian spesifikasi, yang berdampak negatif pada profitabilitas perusahaan, penelitian ini berfokus pada studi pengurangan pemborosan, memahami kontribusi sistem yang dipilih, dan mengeksplorasi pengembangan perangkat lunak aplikasi sebagai bagian dari sistem yang hemat biaya. Metode campuran antara kualitatif dan kuantitatif digunakan dalam penelitian ini dan Six Sigma DMAIC digunakan sebagai metodologi penelitian. CRT dilakukan untuk menemukan akar permasalahan. Dasbor SPC otomatis untuk pengendalian mutu sebagai solusi terbaik di antara tiga solusi alternatif diidentifikasi menggunakan Proses Hirarki Analitik. Dengan menerapkan "dasbor SPC otomatis", yang dikembangkan dengan menggabungkan otomatisasi dengan inisiatif Pengendalian Proses Statistik menggunakan Visual Basic for Application, pengurangan pemborosan yang signifikan dapat dicapai. Hal ini memicu pengurangan biaya dan memberikan kontribusi positif pada profitabilitas perusahaan.
Does Responsiveness Dimensions Play the Key Role in Shaping Patient Satisfaction in Public Hospitals? Adriel Fauzana; Akbar Adhi Utama
Journal of Research in Social Science and Humanities Vol 5, No 2 (2025)
Publisher : Utan Kayu Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47679/jrssh.v5i1.325

Abstract

This study investigates how Service Quality Dimensions influence patient satisfaction in a public hospital setting, using Syarif Hidayatullah Hospital as a case study. Employing the Service Quality Model, five dimensions, such as Tangibility, Reliability, Responsiveness, Assurance, and Empathy, were analyzed through a Mixed-Method approach that combined quantitative survey data from 120 respondents with qualitative feedback using NVivo Software. The results indicated that Responsiveness, particularly in pharmacy services, was the most influential factor affecting patient satisfaction but also the weakest in performance. Descriptive and inferential statistics showed significant delays in prescription fulfillment, especially for Mixed and Concoction types, with average waiting times exceeding 30 minutes. Qualitative themes further revealed dissatisfaction related to communication breakdowns, lack of queue transparency, and insufficient updates during pharmacy processes. While Empathy and Assurance received high ratings, they could not compensate for operational inefficiencies that shaped patients’ final impressions. The study concludes that enhancing Responsiveness through workflow redesign, digital queue systems, and real-time communication tools is critical to improving overall satisfaction. These findings contribute to healthcare service improvement by emphasizing the strategic role of Responsiveness in public hospital environments.
Work Method and SLA Performance in Procurement and Contract Operations: Evidence from Indonesia’s Upstream Oil and Gas Industry Rida Elfreda Agustiana; Akbar Adhi Utama
Inkubis : Jurnal Ekonomi dan Bisnis Vol. 8 No. 2 (2026): INKUBIS Jurnal Ekonomi Dan Bisnis
Publisher : Politeknik Siber Cerdika Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59261/inkubis.v8i2.370

Abstract

Background: Following organizational restructuring, Procurement and Contract Management (PCM) functions across Subholding entities in Indonesia’s upstream oil and gas sector show variation in Service Level Agreement (SLA) achievement linked to differences in work method, personnel allocation, and coordination practices; external factors such as regulatory requirements and digital system transformation may further shape these outcomes. Objective: This study analyzes SLA performance variation across Subholding entities and examines how work method, personnel allocation, and coordination influence procurement and contract management performance, extending operations-management literature on work specialization beyond single-sector confirmation toward context-specific evidence from a regulated, project-based industry. Methods: Using a convergent parallel mixed-method design (Creswell & Plano Clark, 2018), quantitative data from six Subholding entities (2024) were analyzed together with qualitative data from interviews and FGDs; the two strands were collected concurrently and merged during interpretation to provide complementary explanatory depth. Results: Split work methods achieved 45% faster SLA completion than end-to-end methods. Contract Assignment Ratio showed a weak negative but statistically insignificant correlation with SLA Compliance (Pearson r = -0.251, p = 0.631; n = 6), indicating limited statistical power from only six regional observations and suggesting that process coordination, execution quality, and capability differences, rather than personnel volume alone, more strongly explain SLA variation. Conclusion: Split work methods improve SLA performance through role specialization and coordination, while personnel allocation alone does not determine outcomes. Findings offer practical guidance for procurement governance, SLA monitoring, and capability development; generalization beyond a single industrial sector and a small regional sample remains limited.
Co-Authors Adriel Fauzana Afin, Bayu Pramana Ana Noveria Arianne Muthia Zahra Azizah Mumtazah Efson Dalie Priasmoro Desy Anisya Farmaciawaty Desy Kharohmayani Dimas Haribowo Erni Nur'Ainy Evy Rachmawati Chaldun Farieza Qoriyana Fitriana Prahastiwi Pramono Fransisca Budyanto Widjaja, Fransisca Budyanto Ganes Agni Wibisono Hary Setiawan Hary Setiawan, Hary Hasanudin, Mochamad Ilma Nurul Rachmania Jerry Tirta Luthfi Sukmadanu Madani, Fauzan Mursyid Hasan Basri Nugraha, Cahyo Ady Nur'Ainy, Erni Primasatria Zhes Putra Rais Akbar 'Alim Rida Elfreda Agustiana Rio M A Sitorus Rizki Aditia Safira, Farhana Salim, Mochamad Agus Shelby Riani Altinia Sontania, Mesli Sukmadanu, Luthfi Sylvania Putri, Sylvania Wawan Dhewanto Widjaja, Fransisca Budyanto Yuniar, Yura Armianty