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All Journal Jurnal Riset danAplikasi Teknik Industri (JRATI) Jurnal Pendidikan Sains dan Teknologi Terapan Jurnal Riset Multidisiplin Edukasi
Mia Juliana
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Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Other

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REDESIGN KURSI BUS YANG ERGONOMIS DENGAN PENDEKATAN ANTROPOMETRI (STUDI KASUS BUS TRANS METRO DEWATA) Krisna, I Gusti Ngurah Bagus Hermaya; I Gusti Ngurah Priambadi; Ni Luh Putu Lilis Sinta Setiawati; I Made Dwi Budiana Penindra; Mia Juliana; Ni Made Cyntia Utami
JURNAL RISET DAN APLIKASI TEKNIK INDUSTRI Vol. 1 No. 01 (2023): Volume 2 Desember (2023)
Publisher : Study Program of Industrial Engineering, Udayana University

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Abstract

Due to passenger complaints regarding the comfort of the seats on the Trans Metro Dewata Bus, and the possibility that the design of the seats could result in musculoskeletal disorders (MSDs), it is deemed necessary to redesign the seats of the Trans Metro Dewata Bus to create an ergonomic seat design. In the process of redesigning the bus seats, the ergonomics method with an anthropometric approach was used. The ergonomic approach in question is to adjust the seat design to the anthropometric dimensions of the sample of Trans Metro Dewata Bus passengers. In this anthropometric approach, four anthropometric dimensions are determined which play an important role in chair redesign, namely (1) shoulder height, (2) knee fold (popliteal), (3) hip width, and (4) distance from knee fold (popliteal) to buttocks. For each dimension, calculations were carried out according to the procedure for 100 sample data that had been taken from passengers of the Trans Metro Dewata Corridor 3 Bus in March 2023. Based on the passenger samples that had been obtained, then the anthropometric data testing process was carried out starting from the normality test, uniformity test data, and data adequacy test.
Analisis Material Requirement Planning dalam Pengendalian Persediaan Bahan Baku pada PT X Widyastari, Ni Luh Putu Winni; I Made Dwi Budiana Penindra; Bryan Estavan Imanuel Sitanggang; Anak Agung Istri Agung Sri Komaladewi; Mia Juliana; Ni Made Cyntia Utami
JURNAL RISET DAN APLIKASI TEKNIK INDUSTRI Vol. 3 No. 01 (2025): Volume 03 Issue 01, Agustus 2025
Publisher : Study Program of Industrial Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JRATI.2025.v03.i01.p07

Abstract

PT X adalah perusahaan manufaktur yang berfokus pada pembuatan komponen otomotif berbahan dasar karet sintetis. Produk yang dihasilkan oleh PT X antara lain Oil Seal, Valve Steam Seal, O-Ring, dan Rubber Part. Pengendalian persediaan pada PT X dianggap kurang optimal karena karena masih adanya bahan baku yang mengalami overstock. Overstock pada PT X menyebabkan terjadinya pemborosan modal kerja yang tertanam dalam persediaan bahan baku. Penelitian ini bertujuan untuk mengetahui peramalan permintaan bahan baku KS-25 di PT X dan mengetahui penerapan metode Lot Sizing yang optimal dalam pengendalian persediaan bahan baku KS-25 di PT X. Penelitian ini dilakukan dengan peramalan permintaan serta analisis lot sizing dengan metode Economic Order Quantity, Periodic Order Quantity, Lot for Lot dan Min-max. Metode lot sizing yang memberikan total inventory cost terendah yaitu metode POQ dengan biaya sebesar Rp 837.982.027. Hasil peramalan pada penelitian ini menggunakan tiga metode penelitian yaitu metode moving average, weighted moving averages, dan exponential smoothing. Hasil yang didapatkan menunjukkan bahwa metode exponential smoothing (α=0,8) merupakan hasil terbaik dengan jumlah error terkecil.
PERANCANGAN PROTOTIPE UI/UX LAYANAN PEMESANAN BERBASIS MOBILE WEBSITE PADA UMKM LETRA STUDIO MENGGUNAKAN METODE DESIGN THINKING Brilioneristen; Mia Juliana; Made Nindya Kirana
Jurnal Riset Multidisiplin Edukasi Vol. 2 No. 8 (2025): Jurnal Riset Multidisiplin Edukasi (Edisi Agustus 2025)
Publisher : PT. Hasba Edukasi Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71282/jurmie.v2i8.805

Abstract

Letra Studio, an MSME photography studio in Jimbaran, faces challenges with its manual reservation system via social media: slow responses, risk of double booking, data management difficulties, and lack of transparency regarding prices and schedules. This process takes over an hour, far exceeding customer expectations of under ten minutes, and results in a System Usability Scale (SUS) score of 45.4 ("Poor"). This study designs a UI/UX prototype for a mobile website-based ordering service at Letra Studio using the Design Thinking method (Empathize, Define, Ideate, Prototype). This high-fidelity prototype integrates real-time schedule display, structured package information, and an automated payment flow. Usability testing with 12 participants showed positive results: a 100% Completion Rate, an average booking time of 127.5 seconds (significantly more efficient than the >1 hour manual process), and a SUS score of 92 ('A' / 'Excellent'). In conclusion, the UI/UX prototype design successfully created an effective, comfortable, and efficient customer experience, significantly reducing booking time, addressing pain points, and enhancing Letra Studio's professionalism and operational efficiency.
ELIMINASI PEMBOROSAN PADA PROSES PRODUKSI PIA SUSU BALI MENUNGGUNAKAN PENDEKATAN LEAN MANUFACTURING (STUDI KASUS: CV X) Putu Kevin Dinata Arsana; Mia Juliana; Made Nindya Kirana
Jurnal Riset Multidisiplin Edukasi Vol. 2 No. 9 (2025): Jurnal Riset Multidisiplin Edukasi (Edisi September 2025)
Publisher : PT. Hasba Edukasi Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71282/jurmie.v2i9.941

Abstract

This study aims to identify and reduce waste in the production process of Balinese milk pia at CV X using the Lean Manufacturing approach. The company faces issues such as production capacity constraints in meeting fluctuating demand and a high defect rate, averaging 2.46%. The methodologies applied include Value Stream Mapping (VSM) to visualize material and information flow, Process Activity Mapping (PAM) to classify activity types, and the Fishbone Diagram to identify root causes of waste. The analysis revealed that the main forms of waste were excessive transportation, waiting time, and product defects in the final stages. Only 47.86% of the activities were value-added, while the rest were either non-value-added or necessary but non-value-added. Improvement strategies focused on optimizing workstations and implementing the 5S method to maintain sustainable efficiency. Post-implementation results show improved process efficiency and a reduction in non-value-added activities. This study demonstrates that Lean Manufacturing can significantly enhance production performance in traditional food industries.
Perancangan Strategi Peningkatan Service Quality Terhadap Kepuasan Pelanggan dengan Metode Importance Performance Analysis dan Quality Function Deployment Pada Gramedia Cabang Teuku Umar Bali Dwi Satya Putra Kencana; Mia Juliana; Bryan Estavan Imanuel Sitanggang
Jurnal Pendidikan Sains dan Teknologi Terapan | E-ISSN : 3031-7983 Vol. 1 No. 2 (2024): April - Juni
Publisher : CV.ITTC INDONESIA

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Abstract

The aspect of service quality is an important thing to consider to maintain business continuity. Based on the importance of services provided to customers, Gramedia must really pay attention to its services. Based on the assessment results through the Google Review Application, several aspects are still complained about by customers, indicated by a low rate. Low ratings can potentially influence other customers. This research was conducted to measure the Customer Satisfaction Index (CSI) of Gramedia customers, followed by identifying Service Quality attributes that are important to improve using the Importance Performance Analysis (IPA) and Quality Function Deployment (QFD) methods. The results of the analysis obtained a CSI value of 72.96% in the range of 100%. This indicates the need to improve service quality with 5 attributes that must be prioritised for improvement. Based on the analysis of the Quality Function Deployment (QFD) method, namely the development of other supporting facilities such as playgrounds and reading rooms containing chairs and tables, adjusting and making parking system standards in collaboration with vendors, completing books and stationery equipment according to customer needs, using the latest e-catalog technology in service services, providing training for employees, and installing room layout information.
Co-Authors Anak Agung Istri Agung Sri Komaladewi Brilioneristen Bryan Estavan Imanuel Sitanggang Dwi Satya Putra Kencana I Gusti Ngurah Priambadi I Made Dwi Budiana Penindra Krisna, I Gusti Ngurah Bagus Hermaya Made Nindya Kirana Ni Luh Putu Lilis Sinta Setiawati Ni Made Cyntia Utami Putu Kevin Dinata Arsana Widyastari, Ni Luh Putu Winni