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All Journal Journal of Integrated System IJIES (International Journal of Innovation in Enterprise System)
Ningsih, Nur Fitria
Bandung Polytechnic For Manufacturing
Control & Systems Engineering Engineering Industrial & Manufacturing Engineering

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Analisis Performa Input Teks Satu Jari dan Dua Jari pada Antarmuka Mid-Air Virtual Keyboard Canny, Susmitha; Ningsih, Nur Fitria
Journal of Integrated System Vol. 8 No. 2 (2025): Journal of Integrated System Vol. 8 No. 2 (December 2025)
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jis.v8i2.13578

Abstract

Perkembangan mixed reality (MR), augmented reality (AR), dan virtual reality (VR) meningkat seiring kemampuan processing, sehingga mendorong adopsi antarmuka virtual seperti mid-air virtual keyboard yang memberi fleksibilitas namun menimbulkan tantangan pada kecepatan dan akurasi pengetikan. Penelitian ini mengevaluasi pengaruh dua teknik input, yaitu satu jari dan dua jari, terhadap performa pengetikan pada mid-air virtual keyboard dalam lingkungan MR. Desain penelitian adalah eksperimen within-subjects dengan purposive sampling yang merekrut 18 partisipan dewasa sehat. Metode yang digunakan adalah eksperimen dengan dukungan hand-tracking, di mana partisipan menyelesaikan tugas pengetikan pada beberapa kombinasi teknik pengetikan dan setiap kondisi dilakukan pengukuran kecepatan dan keakuratan pengetikan. Data dianalisis menggunakan statistik deskriptif, uji normalitas Shapiro–Wilk, repeated measures ANOVA, ukuran efek dan interval kepercayaan dilaporkan untuk memperkuat interpretasi. Hasil menunjukkan teknik dua jari menghasilkan laju pengetikan tertinggi, sedangkan satu jari memberikan tingkat akurasi lebih baik. Temuan ini memberikan rekomendasi praktis untuk pemilihan teknik input dalam perancangan antarmukamid-air guna meningkatkan produktivitas pengetikan di lingkungan mixed reality.
Ergonomic Mobility Aid Redesign for Older Adults Using QFD and Concurrent Engineering susmitha canny; Bagus Anugrah Ramadhan; Nur Fitria Ningsih
IJIES (International Journal of Innovation in Enterprise System) Vol 9 No 2 (2025): International Journal of Innovation in Enterprise System
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/ijies.v9i02.9987

Abstract

Global increases in life expectancy have led to a growing proportion of older adults experiencing functional decline and mobility limitations. In Indonesia, older adults account for 11.75% of the population, with musculoskeletal disorders being a major cause of disability and fall-related injuries. Mobility aids are essential to support independence and reduce fall risk. However, many existing designs lack adequate ergonomic considerations, limiting comfort and usability. This study aimed to optimize mobility aid design by applying ergonomic principles and a user-centered development approach to improve safety, functionality, and quality of life among older adults. Quality Function Deployment (QFD) was used to translate user needs into technical specifications, while Concurrent Engineering was applied to integrate ergonomic and technical considerations throughout the design and prototyping stages. The resulting design incorporates adjustable height, a foldable seat, lightweight durable materials, and a reliable braking system. Verification confirmed compliance with key technical requirements, including a handbrake force of 120 N and a height adjustment range of 75–88 cm. Validation with 30 older adult users demonstrated high satisfaction, particularly with stability and braking performance. Overall, the proposed mobility aid shows potential to enhance safety, usability, and functional independence among older adults.
Co-Authors Bagus Anugrah Ramadhan Canny, Susmitha Canny susmitha canny