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All Journal Jurnal Teknologi Industrial & System Engineering Journals (ISEJOU)
Novid Hidayat
Universitas W R Supratman
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Transportation

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Eliminasi Bottleneck pada Stasiun Cutting melalui Perbaikan Metode Kerja dan Perancangan Jig pada Simulasi Lini Perakitan Moh. Ainul Fais; Dedy Kunhadi; Silvana Mohamad; Novid Hidayat; Djaffar Sodiq
Jurnal Teknologi Vol. 13 No. 2 (2026): Jurnal Teknologi
Publisher : Universitas Jayabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31479/jtek.v13i2.439

Abstract

Proses pemotongan panel kayu secara manual pada simulasi lini perakitan menunjukkan waktu siklus yang tinggi dan tidak stabil sehingga stasiun cutting menjadi pembatas aliran produksi. Penelitian ini mengevaluasi pengaruh jig sederhana terhadap perbaikan metode kerja melalui pengurangan aktivitas tidak bernilai tambah dan penstabilan posisi material sebelum pemotongan. Data dikumpulkan melalui studi waktu menggunakan stopwatch, masing-masing lima pengamatan pada kondisi tanpa jig dan lima pengamatan menggunakan jig. Analisis mencakup waktu normal, waktu standar, output standar, peta proses operasi, peta aliran proses, dan pengujian statistik. Hasil menunjukkan waktu standar turun dari 55,37 detik menjadi 34,74 detik, sedangkan output standar meningkat dari 65,02 menjadi 103,63 unit/jam. Simpangan baku sampel turun dari 1,03 detik menjadi 0,11 detik, dan empat aktivitas tidak bernilai tambah yang menjadi target perbaikan berhasil dihilangkan. Uji Welch menunjukkan perbedaan signifikan antara kedua kondisi (t = 37,74; df = 4,10; p < 0,01). Temuan ini menegaskan bahwa penggunaan jig efektif mengurangi bottleneck yang diamati dan meningkatkan kestabilan proses pada simulasi laboratorium.  Keywords: Assembly Line, Bottleneck Elimination, Jig Design, Work Measurement, Work Method Improvement
Pemetaan Tema, Metode, dan Kontribusi Value Engineering dalam Berbagai Sistem Teknik melalui Systematic literature review Moh Ainul Fais; Silvana Mohamad; Dedy Kunhadi; Djaffar Sodiq; Novid Hidayat; Mohamad Tsaqif Apta Laksono
Industrial & System Engineering Journals (ISEJOU) Vol. 4 No. 2 (2026): ISEJOU, Vol 4, No 2 Juni 2026
Publisher : Universitas Katolik Darma Cendika

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Abstract

Value Engineering (VE) has evolved from a cost-control technique into a Value Management approach integrating function, life-cycle cost, quality, sustainability, digitalization, and organizational capability. This study maps the themes, methods, and contributions of VE across engineering systems through a systematic literature review. The search generated 1,000 initial records. After deduplication, multistage screening, DOI and full-text verification, quality appraisal, and replacement of ineligible studies, a final corpus of 80 articles published in 2020–2026 was established. The articles were coded into seven themes, 21 subthemes, nine primary methods, ten integrative techniques, and ten contribution categories. Construction and infrastructure formed the largest theme (26.25%), while technical-economic case studies were the dominant method (31.25%). The most frequently reported contributions were cost efficiency (82.50%), decision quality (68.75%), and technical function or performance (55.00%). The review also identifies the growth of sustainability, BIM, automation, multi-criteria decision methods, and life-cycle costing. Major gaps concern inconsistent value metrics, the dominance of single-case studies, limited post-implementation evaluation, and uneven evidence across engineering systems. The study’s novelty lies in a quality-informed theme, method, and contribution evidence map.
Ergonomi Kognitif dalam Sistem Kerja dan Interaksi Manusia-Teknologi: Systematic Literature Review tentang Penerapan, Pengukuran, dan Luaran Silvana Mohamad; Moh. Ainul Fais; Dedy Kunhadi; Bambang Sutejo; Djaffar Sodiq; Novid Hidayat; Mohamad Tsaqif Apta Laksono
Industrial & System Engineering Journals (ISEJOU) Vol. 4 No. 2 (2026): ISEJOU, Vol 4, No 2 Juni 2026
Publisher : Universitas Katolik Darma Cendika

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Abstract

Digital work-system transformation intensifies human-technology interaction and creates a need to understand how cognitive ergonomics is applied, measured, and associated with human and system outcomes. This study maps cognitive ergonomics applications, mental-workload measurement approaches, and their relationships with performance, safety, usability, technology acceptance, and worker well-being. A systematic literature review was conducted on 52 full-text journal articles published from 2020 to 2026. Articles were selected through deduplication, multistage screening, DOI verification, quality appraisal, and extraction of 29 variables. The findings identify five application mechanisms: task and interface redesign, human-technology function allocation, cognitive-state monitoring, decision support and training, and integration into work systems. Measurement approaches include subjective ratings, performance measures, behavioral indicators, physiological and neurophysiological signals, task analysis, and multimodal assessment. Associations with outcomes are conditional because they vary according to task complexity, experience, age, duration, technology transparency, and environmental conditions. The review proposes a three-layer application-measurement-outcome framework in which workload functions as a linking mechanism and a source of feedback for redesign. The findings support multi-indicator evaluation, field validation, and designs that preserve cognitive fit, predictability, control, situation awareness, and recovery.
Co-Authors Bambang Sutejo Dedy Kunhadi Djaffar Sodiq Moh. Ainul Fais Mohamad Tsaqif Apta Laksono Silvana Mohamad