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Jurnal Optimalisasi
Published by Universitas Teuku Umar
ISSN : 24775479     EISSN : 25020501     DOI : https://doi.org/10.35308/jopt
Core Subject : Engineering,
Control & Systems Engineering Industrial & Manufacturing Engineering
JURNAL OPTIMALISASI (JOPT) merupakan jurnal elektronik online yang diterbitkan oleh Program studi Teknik Industri, Fakultas Teknik, Universitas Teuku Umar. JOPT memuat kajian dibidang Manufaktur, Ergonomi dan Manajemen Rantai Pasok. Tujuan penerbitan jurnal optimalisasi adalah sebagai wadah publikasi yang mewadahi kebutuhan peningkatan kualitas karya ilmiah dalam rangka pengembangan keilmuan dan menyebarluaskan kajian bidang ilmu Teknik Industri, sekaligus sebagai wahana komunikasi diantara cendekiawan, praktisi, mahasiswa dan pemerhati masalah Industri. JOPT terbit dua kali dalam setahun, tepatnya pada bulan April dan Oktober. Bagi pembaca, penulis, dan yang melakukan akses situs jurnal yang ingin submit naskah ke jurnal ini, silakan mendaftar sebagai author kemudian login untuk submit naskah. Informasi penulisan dan submit naskah dapat diakses di author guidelines dengan mengikuti pentunjuk di situs jurnal.
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 264 Documents
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Analisis Distribusi Risiko Rantai Pasok Kopi Organik Gayo Menggunakan Pendekatan Indeks Risiko Arie Saputra; Taufik Djatna
Jurnal Optimalisasi Vol 12, No 1 (2026): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v12i1.15246

Abstract

This study aims to analyze risk in the organic coffee supply chain by examining the level and distribution of risk across key actors. The scope of the research covers upstream to downstream participants, including farmers, collectors, processors, and cooperatives. A quantitative approach was employed using a risk index model that integrates probability and consequence to measure risk exposure at each stage of the supply chain. Data were collected through field surveys, interviews, and secondary sources, and subsequently analyzed to generate comparative risk values among actors. The results indicate that risk is unevenly distributed, with farmers at the upstream level exhibiting the highest risk index (approximately 0.32), while downstream actors such as cooperatives show relatively lower risk levels (around 0.14). The dominant risks are associated with production uncertainty, quality variability, and price fluctuations, which disproportionately affect upstream actors. These findings demonstrate that risk characteristics are strongly influenced by the structural position and functional role of each actor within the supply chain. In conclusion, the study highlights that supply chain risk analysis should not only focus on identifying and measuring risk magnitude but also on understanding its distribution across actors to provide a more comprehensive assessment of system vulnerability.
Reduksi Risiko Musculoskeletal Disorders pada Proses Packing di Industri Garmen Dioren Tri Paganta; Efie Indrianti; Elty Sarvia
Jurnal Optimalisasi Vol 12, No 1 (2026): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v12i1.14848

Abstract

Musculoskeletal disorders (MSDs) remain one of the major issues in manufacturing industries that still rely on manual work, including the textile and garment sectors. The large-scale packing process is often perceived as a simple activity; however, in practice, it involves non-neutral working postures, manual lifting of heavy loads 16–18 kg, and repetitive movements, which increase the risk of MSDs. This study aims to identify the level of postural risk in the large-scale packing process at PT. HX and to design and implement an ergonomic assistive device as an effort to reduce MSD risks. Postural evaluation was conducted on 14 main activity scenarios using the Rapid Entire Body Assessment (REBA) method. The results showed that 92.86% of activities fell into medium to very high-risk categories, with the highest REBA score reaching 11. Further analysis using fishbone diagrams and the 5 Whys method identified that work methods and facility design were the dominant factors contributing to the high ergonomic risk, particularly due to the use of pallets at low working heights (±14 cm) and the absence of ergonomic assistive devices. Based on these findings, an Ergonomic Adjustable Packing Table was designed and implemented, featuring a height-adjustable mechanism using a pneumatic spring and a roller conveyor system with an inclination of approximately 7°. Post-implementation evaluation indicated that no activities remained in the medium to very high-risk categories (0%), and the maximum REBA score decreased from 11 to 2. The number of work activities was also reduced from 14 to 5 ( 64.3% reduction) due to the elimination of high-risk manual handling tasks. In addition, the cycle time for the packing process decreased significantly from 188.04 seconds to 92.15 seconds (an efficiency improvement of 51.0%). These results demonstrate that an ergonomic approach based on postural improvement and assistive device design is effective in enhancing safety, comfort, and work efficiency in large-scale packing processes.
Integrasi AHP dan QFD dalam Penentuan Kualitas Bahan Baku Ayam untuk Mitigasi Risiko Supply Chain Silvana Mohamad; Moh. Ainul Fais; Sofiyanurriyanti Sofiyanurriyanti; Abdul Rasyid
Jurnal Optimalisasi Vol 12, No 1 (2026): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v12i1.15176

Abstract

This study aims to determine the priority of chicken raw material quality risks and formulate technical responses to support supply chain risk mitigation in restaurant operations. The research object was Restoran XYZ, Surabaya, which relies on chicken as its main raw material. This study used an integrated Analytic Hierarchy Process (AHP) and Quality Function Deployment (QFD) approach. Primary data were collected through observation, interviews, and questionnaires involving restaurant stakeholders responsible for procurement, inspection, and processing of chicken raw materials. AHP was used to determine supply chain risk priorities, while QFD was used to translate quality attributes into technical responses through the House of Quality matrix. The AHP results show that the highest priority risk was chicken quality not meeting standards, with a weight of 0.422, followed by delayed delivery at 0.254, price mismatch at 0.162, inaccurate weighing at 0.104, and quantity mismatch at 0.059. The inconsistency ratio was 0.09, indicating acceptable pairwise comparisons. The QFD results show that the main quality attributes were chicken freshness, followed by feather cleanliness, cutting condition, and chicken weight. The main technical responses were worker training at 26.87%, rechecking weighing results at 22.39%, preparing delivery invoices at 22.39%, careful weighing at 17.91%, and scheduling raw material delivery at 10.45%. These findings show that integrating AHP and QFD can support structured decision-making by linking risk priorities with operational quality improvement. The results can be used to develop standard operating procedures for raw material acceptance, supplier evaluation, and supply chain risk mitigation.
Marketing Strategy for Lely Gorden Interior MSME Using SOAR Analysis and Quantitative Strategic Planning Matrix (QSPM) I Gusti Ayu Sri Deviyanti; Moh. Ainul Fais; Nyoman Sri Widari; Suhatati Tjandra; Endang Sriwahyuni
Jurnal Optimalisasi Vol 12, No 1 (2026): April
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jopt.v12i1.15102

Abstract

Competition among interior-related MSMEs requires marketing strategies that connect internal capability with market opportunity. Previous studies have discussed MSME marketing strategies using SWOT, SOAR, and QSPM, but limited attention has been given to interior curtain MSMEs that rely on customization, product quality, installation service, and customer trust. This study aims to formulate and determine the priority marketing strategy for Lely Gorden Interior MSME by integrating SOAR analysis and the Quantitative Strategic Planning Matrix (QSPM). This research used a descriptive case study approach. Primary data were obtained through owner interviews and field observation, while secondary data were collected from business documents and relevant literature. The data were analyzed using SOAR, EFE, IFE, IE, and QSPM matrices. The EFE and IFE scores were 3.60 and 3.40, placing the MSME in Quadrant I of the IE matrix. This position indicates a growth-oriented strategy. The SOAR matrix produced four alternative strategies. QSPM results show that building a premium brand image through customized product quality and personalized service across online and offline channels obtained the highest Total Attractiveness Score of 3.70. The study contributes to MSME strategy literature by showing how SOAR and QSPM can convert qualitative business potential into measurable marketing priorities in an interior MSME context.

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