Caecilia Sri Wahyuning
Institut Teknologi Nasional Bandung

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IMPLEMENTASI METODE SIX SIGMA DALAM PENETAPAN STRATEGI PENINGKATAN KUALITAS JASA PERBAIKAN TURBIN Azmi Anwar Sidik; Caecilia Sri Wahyuning
Jurnal Rekavasi Vol 10 No 1 (2022)
Publisher : Jurusan Teknik Industri, Institut Sains & Teknologi AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/rekavasi.v10i1.3843

Abstract

Companies that are involved in turbine repair service and maintenance often suffered from delayed work, which affected customer satisfaction and trust. Six-Sigma method is used to solve the delay issue. According to the research result, it is found that the capability of servicing process of a turbine in this company is 1.346s with DPMO of 560810.8. This condition is categorised as low, below the industry average in Indonesia of 2s with DPMO of 308.538. The main cause of the delay is with the unreliable work-hour prediciton, unreliability and unavailability of materials from suppliers, failure of the machines, and flawed scheduling. It is suggested to improve the service by work measurment to help predict the needs for repair schedule, rectifying the supply and maintenance system, as well as scheduling system according to the demands of repair service, repair time prediction, and the repair schedule of the machine itself
Kajian Antropometri Kaki Perempuan Bandung dengan Profesi Beraktivitas Tinggi dalam Berdiri dan Berjalan Nazzala Zidan Zakiyyan Razan El-Akbar; Kemal Fahrezi Putra; Caecilia Sri Wahyuning
Jurnal Riset Teknik Komputer Vol. 3 No. 3 (2026): September : Jurnal Riset Teknik Komputer (JURTIKOM)
Publisher : CV. Denasya Smart Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69714/9tb90b48

Abstract

A mismatch between shoe sizes and the foot anthropometric characteristics of Indonesian women can cause discomfort and affect shoe fit, particularly for women whose daily activities involve significant standing and walking. This study aims to identify the foot anthropometric characteristics of women in Bandung who engage in high levels of standing and walking and to analyze how these characteristics align with shoe sizing systems currently on the market. The study employed an anthropometric approach involving direct measurements of 100 Indonesian female respondents aged 18–35 years with high levels of standing and walking activity. Measured dimensions included foot length, foot width, instep circumference, mid-foot height, heel-ankle circumference, ankle circumference, and arch height. Data were analyzed using normality tests, uniformity tests, data adequacy tests, descriptive statistics, and comparative analysis against commercial shoe sizing systems. The results indicate that the respondents' feet had an average length of 24 cm and an average width of 9.13 cm. Comparisons with commercial sizing standards revealed a discrepancy in foot length of 2.49–3.09 cm within the EU size range of 38–42, suggesting a tendency toward over-sizing in commercially available shoes. The "Japan Size 24.0 cm" system most closely matched the respondents' average foot length, although its application would still require adjustments to account for local anthropometric characteristics. Therefore, the development of shoe sizing standards based on the foot anthropometry of Indonesian women and the design of a master shoe last incorporating a 10–15 mm allowance are recommended to produce footwear that is more ergonomic, comfortable, and better suited to user characteristics