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All Journal Media Elektrik Jurnal Pendidikan dan Profesi Keguruan
Firdaus Firdaus
Universitas Negeri Makassar, Indonesia
Computer Science & IT Control & Systems Engineering Education Engineering Mathematics Other

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Journal : Media Elektrik

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USABILITY ANALYSIS OF INDUSTRIAL PRACTICE INFORMATION SYSTEM (SIPI) USING SYSTEM USABILITY SCALE (SUS) IN INFORMATICS AND COMPUTER ENGINEERING DEPARTMENT UNM Andini Wulandari; Muhammad Yusuf Mappeasse; Shabrina Syntha Dewi; Firdaus Firdaus
Jurnal Media Elektrik Vol. 22 No. 3 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v22i3.8277

Abstract

This study aims to analyze the level of usability in the Industrial Practice Information System (SIPI) using the System Usability Scale (SUS) method in the Informatics and Computer Engineering Department, UNM. This research is a type of quantitative descriptive research, the data collection techniques used are questionnaires, interviews and documentation. The subjects of this study were students of the Informatics and Computer Engineering Department, class of 2021, who were taken using nonprobability sampling using the saturated sampling method totaling 60 people. The difference between this study and several previous studies is in the method used and the determination of the SUS score, which is not only from 3 aspects, namely acceptability, grade scale, adjective rating, but also with percentile rank and analysis of respondent responses. From the results of the analysis, it was found that the level of usability in the Industrial Practice Information System (SIPI) using the System Usability Scale (SUS) method, namely the SUS score of 60 with a percentile rank value of 29%, with a grade scale that falls into the category "D", for the adjective rating is in the category "Ok" which means that the usability of SIPI is quite decent. Furthermore, the acceptability ranges aspect is in the category "Marginal" which means that SIPI can be marginally accepted/can be accepted with conditions by users. From the results of the analysis of user responses to the SUS questionnaire, it is known that the usability aspects that still have a low percentage value are the memorability and learnability aspects. Thus, SIPI can be accepted by users however, improvements or developments are still needed to optimize the use of the system, especially in the usability aspect which has a low percentage value, namely memorability and learnability.
Development of Prototype of Arduino-Based Automatic Ablution Faucet to Save Water Usage Al Imran; Firdaus Firdaus; Haripuddin Haripuddin; Abdillah Jamil
Jurnal Media Elektrik Vol. 23 No. 1 (2025): MEDIA ELEKTRIK
Publisher : Jurusan Pendidikan Teknik Elektro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/metrik.v23i1.9790

Abstract

This study aims to develop and evaluate an Arduino-based automatic ablution faucet designed to reduce water consumption through proximity sensing and real-time water-flow monitoring. Using an engineering research approach with a prototype development model, the system was constructed using an Arduino Uno microcontroller, a proximity sensor, and a water-flow sensor, followed by direct testing and usability evaluation involving 30 respondents. Functionality assessment was conducted by experts using the ISO 25010 framework, while usability testing employed a Likert-scale questionnaire. The results show that the automatic faucet successfully regulated water flow based on user presence and displayed real-time water usage on an LCD. Comparative testing between manual and automatic faucets demonstrated a 44.03% reduction in water consumption, with the prototype achieving 100% functionality and an 87.8% usability score, indicating that the system is operationally reliable, accurate, and user-friendly. Sensor calibration produced an average error rate of 1.2%, which falls within acceptable tolerance limits. The novelty of this research lies in its integration of dual-sensor technology, quantitative water-efficiency measurement, and ISO 25010-based quality evaluation within a single prototype framework an approach not commonly adopted in previous studies on ablution automation. The incorporation of real-time water monitoring also enhances the system’s practicality and contributes to technological advancements in water conservation and electrical engineering applications.
Co-Authors Abdillah Jamil Al Imran Andini Wulandari Dewi Triantini Fikri Asis Firda Ayu Firanti Haripuddin Haripuddin Hilda Ashari Ilma Alya Rasta Muhammad Yusuf Mappeasse Murniati Murniati Mustamin Mustamin Mustari Lamada Risdayanti Risdayanti Shabrina Syntha Dewi Sugeng A. Karim