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All Journal Jurnal Teknik Industri : Jurnal Hasil Penelitian dan Karya Ilmiah dalam Bidang Teknik Industri Jurnal Teknologi dan Manajemen Industri Terapan
Wahyu
Universitas Pamulang
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Environmental Science Industrial & Manufacturing Engineering

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Integration Of Value Stream Mapping And Systematic Layout Planning Using Supermarket Material System To Reduce Material Handling Cost In Sports Footwear Manufacturing Esa Pratiwi; Niera Feblidiyanti; Ramdani Lukito; Wahyu
Jurnal Teknologi dan Manajemen Industri Terapan Vol. 5 No. 2 (2026): Jurnal Teknologi dan Manajemen Industri Terapan
Publisher : Yayasan Inovasi Kemajuan Intelektual

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55826/jtmit.v5i2.1773

Abstract

Manufacturing systems operating under constrained facility layouts often experience inefficiencies such as excessive material handling, long waiting times, and high work-in-process (WIP) inventory. While Value Stream Mapping (VSM) and Systematic Layout Planning (SLP) have been widely applied to improve production efficiency, most existing studies assume high flexibility in machine relocation, which is rarely feasible in real industrial environments. Moreover, the integration of pull-based control systems, such as supermarket material systems, within layout-constrained environments remains underexplored. This study aims to develop an integrated lean framework combining VSM, SLP, and a supermarket-based material control system to improve material flow efficiency without requiring physical layout modification. The research was conducted in the upper assembly line of a sports footwear manufacturing facility. The methodology includes Current Value Stream Mapping (CVSM), Activity Relationship Chart (ARC), Activity Relationship Diagram (ARD), and quantitative material handling analysis. The results show that non-value-added activities dominate 99.76% of total lead time, indicating severe flow inefficiency. The implementation of the supermarket system successfully reduces material handling costs by 29.4%. A paired comparison analysis confirms that the improvement is operationally significant. This study demonstrates that integrating VSM, SLP, and supermarket systems provides a practical and effective approach for improving production efficiency under layout constraints
Identifikasi Hambatan Utama Pengembangan Eksplorasi Panas Bumi di Indonesia Menggunakan Metode Grey Delphi Gilang Ardi Pratama; Mairizal; Syahreen Nur Mutia; Wahyu; Esa Pratiwi
Jurnal Teknologi dan Manajemen Industri Terapan Vol. 5 No. 3 (2026): Jurnal Teknologi dan Manajemen Industri Terapan
Publisher : Yayasan Inovasi Kemajuan Intelektual

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55826/jtmit.v5i3.2171

Abstract

Indonesia memiliki potensi panas bumi yang sangat besar, namun realisasi pemanfaatannya masih jauh dari target nasional, terutama karena tingginya risiko dan hambatan pada tahap eksplorasi. Penelitian ini bertujuan untuk mengidentifikasi dan memprioritaskan hambatan teknis utama dalam eksplorasi panas bumi di Indonesia menggunakan metode Grey Delphi. Melalui tinjauan literatur yang komprehensif, dua belas variabel hambatan teknis diidentifikasi, kemudian divalidasi oleh panel ahli menggunakan kuesioner berbasis grey number untuk menangani ketidakpastian informasi. Data yang terkumpul diolah melalui proses whitening untuk menentukan nilai crisp bagi setiap variabel, dengan ambang batas (threshold) sebesar 0,65 sebagai kriteria penentu signifikansi hambatan. Hasil penelitian menunjukkan bahwa terdapat dua hambatan teknis yang paling kritis, yaitu "Kelanjutan proses" dengan nilai crisp 0,720 dan "Metode Eksplorasi" dengan nilai crisp 0,700. Temuan ini mengindikasikan bahwa ketidakpastian dalam keberlanjutan investasi setelah perolehan data awal serta ketepatan metodologi eksplorasi menjadi tantangan krusial yang memerlukan perhatian segera. Sepuluh variabel lainnya, seperti kelayakan sumber panas, teknologi pelacakan, dan survei mikro-seismik, dinilai kurang signifikan oleh panel ahli pada tahap ini. Hasil penelitian ini memberikan rekomendasi strategis bagi pengembang dan pemerintah untuk lebih fokus pada perbaikan regulasi alur proses dan validitas teknik eksplorasi guna memitigasi risiko kegagalan sumur serta mempercepat pengembangan kapasitas panas bumi di Indonesia.
An Integrated IPA–Kano Framework for Service Quality Improvement in Local Tour and Travel Services Tedi Dahniar; Yudi Maulana; Wahyu; Wanto Sarwoko
JTI: Jurnal Teknik Industri Vol 12 No 2 (2026): December 2026
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/jti.v12i2.39918

Abstract

Service quality evaluation in tour and travel services requires not only identifying attributes that customers consider important but also understanding how their fulfillment or absence affects customer satisfaction. Although Importance–Performance Analysis (IPA) and the Kano Model have been applied in various service contexts, their combined application to translate customer evaluations into actionable improvement priorities for local tour and travel service providers remains contextually underexplored. This study evaluates service quality improvement priorities at CV Mutiara Katulistiwa using an integrated IPA–Kano approach. A quantitative survey was conducted with 99 customers selected through purposive sampling. Twenty-five service attributes covering tangibles, reliability, responsiveness, assurance, and empathy were evaluated based on customer importance, perceived performance, and satisfaction characteristics. IPA identified five attributes in the Concentrate Here quadrant, while the Kano Model classified the attributes into Must-be, One-dimensional, and Indifferent categories. The integrated analysis identified on-order service availability and tourism service security as critical mandatory priorities, whereas complaint responsiveness, service information availability, and tour guide competence emerged as performance-improvement priorities. The integrated IPA–Kano approach provides a structured prioritization mechanism that distinguishes attributes requiring immediate corrective action from those that should be maintained or further developed. Rather than proposing a new integration method, this study extends its application to a local tour and travel service context and demonstrates how integrated customer evaluations can be translated into a practical service-improvement roadmap for small service providers.
Ergonomic Work Posture Assessment Using REBA to Identify Musculoskeletal Disorder Risks among Modern Retail Employees Syahreen Nurmutia; Wahyu; Esa Pratiwi; Safira Amanda Tama
Jurnal Teknologi dan Manajemen Industri Terapan Vol. 5 No. 3 (2026): Jurnal Teknologi dan Manajemen Industri Terapan
Publisher : Yayasan Inovasi Kemajuan Intelektual

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55826/jtmit.v5i3.2177

Abstract

The modern retail sector exposes employees to the risk of musculoskeletal disorders due to non-ergonomic working postures, particularly during repetitive activities such as item scanning, goods lifting, and cashier service. This study aims to analyse employees' working posture conditions at a modern retail store in Bekasi, identify potential contributing factors associated with ergonomic risks, and formulate ergonomic improvement recommendations. A descriptive ergonomic assessment study was conducted using purposive sampling involving cashiers, warehouse staff, and shelf attendants. The study used the Rapid Entire Body Assessment (REBA) method to assess body segments including the neck, trunk, legs, upper arms, lower arms, and wrists. The assessment results showed a final REBA score of 9, indicating that the observed work activities were categorized as high risk with an action level of 3. The high-risk posture was associated with excessive neck flexion exceeding 20°, trunk bending at 37°, and unacceptable coupling conditions. Repetitive work patterns without adequate job rotation further influenced these conditions. Based on the identified ergonomic risks, recommended improvements include optimizing workplace layout, adjusting work equipment dimensions according to employee anthropometric characteristics, and implementing structured job rotation and rest programs to reduce musculoskeletal disorder risks and improve employee comfort.
Co-Authors Esa Pratiwi Gilang Ardi Pratama Mairizal Ramdani Lukito Safira Amanda Tama Sarwoko, Wanto Syahreen Nur Mutia Syahreen Nurmutia Tedi Dahniar Yudi Maulana