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Mahardika, Fajar
Politeknik Negeri Cilacap
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Optimalisasi SIAKAD Berbasis Mobile melalui Redesign Antarmuka dan Pengalaman Pengguna dengan Pendekatan User-Centered Design Mubarok, Hilmi; Nugroho, Suryo; Ramadhani, Khalifah Brilianti; Aziz, Nadjwa Naela; Mahardika, Fajar
Kurawal - Jurnal Teknologi, Informasi dan Industri Vol 9 No 1 (2026): Vol 9 No 1 (2026): Jurnal Kurawal Volume 9, Nomor 1, Maret 2026
Publisher : Universitas Ma Chung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33479/kurawal.v9i1.1440

Abstract

The rapid development of mobile technology encourages educational institutions to provide academic systems that are easily accessible and efficient for users. However, many academic systems still have unintuitive interfaces and suboptimal user experiences, which hinder effective usage. This study aims to optimize the academic system on a mobile platform through a redesign of the User Interface (UI) and User Experience (UX) with a user-centered approach. The method used in this study is the User-Centered Design (UCD) approach, which involves users in every stage of the design process, including requirements analysis, wireframing, prototyping, and usability evaluation. Data were collected through observations, interviews, and questionnaires involving 50 respondents who are active users of the academic system. The results show a significant improvement after the redesign. The System Usability Scale (SUS) score increased from 62.5 (marginal category) to 85.2 (excellent category). The task success rate improved from 70% to 92%, while the average task completion time decreased by 35%. In addition, user satisfaction increased by 40% based on questionnaire results compared to the previous system. These findings indicate that implementing a user-centered UI/UX redesign significantly improves usability, efficiency, and user satisfaction in mobile-based academic systems
E-Warung Mobile: Inovasi UI/UX untuk Mendorong Digitalisasi Usaha Kecil Arif Nugroho, Adhitya Putra; A.P, Fareza Maulana; Luhtitisari, Luhtitisari; Mahardika, Fajar
Kurawal - Jurnal Teknologi, Informasi dan Industri Vol 9 No 1 (2026): Vol 9 No 1 (2026): Jurnal Kurawal Volume 9, Nomor 1, Maret 2026
Publisher : Universitas Ma Chung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33479/kurawal.v9i1.1444

Abstract

Digital transformation in the small business sector, particularly traditional warung (small retail shops), has become an urgent necessity amid the rapid advancement of information technology. However, low levels of digital literacy and limited access to user-friendly applications remain significant barriers to technology adoption. This study aims to design and evaluate the quality of the User Interface (UI) and User Experience (UX) of the E-Warung Mobile application as an effort to support the digitalization of small businesses. The research method employed is a design thinking approach, which consists of the stages of empathize, define, ideate, prototype, and testing. User experience evaluation was conducted using the User Experience Questionnaire (UEQ), which measures six main aspects: Attractiveness, Perspicuity, Efficiency, Dependability, Stimulation, and Novelty. Data were collected through questionnaires distributed to 25 respondents who are small business owners or prospective users, after they completed a series of task scenarios using the application prototype. The analysis results indicate that the mean scores for each UEQ aspect are as follows: Attractiveness (1.75), Perspicuity (1.68), Efficiency (1.72), Dependability (1.65), Stimulation (1.80), and Novelty (1.60) on a scale ranging from -3 to +3. Based on the UEQ benchmark, all aspects fall within the “above average” to “good” categories, indicating that the application demonstrates high usability, is easy to understand, efficient, and capable of delivering a positive user experience. In conclusion, this study shows that the implementation of user-centered UI/UX design, quantitatively evaluated using UEQ, can enhance the quality of user interaction and has the potential to promote broader adoption of digital technology among small businesses
Automatic Dewey Decimal Classification of Indonesian Book Metadata Using IndoBERT with Weighted Loss and Context Enhancement Joko Purwanto; Fajar Mahardika; Adlan Nugroho
Journal of Artificial Intelligence and Technology Information (JAITI) Vol. 4 No. 2 (2026): Volume 4 Number 2 June 2026
Publisher : PT. Tech Cart Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58602/jaiti.v4i2.258

Abstract

This study proposes an automatic Dewey Decimal Classification (DDC) classification framework for Indonesian book metadata by integrating the IndoBERT model strengthened through weighted loss and context enhancement mechanisms. The current escalation of digital book collections poses significant challenges in classification efficiency and information retrieval, while the manual DDC classification process still relies on librarian expertise and is relatively time-consuming. The dataset used includes 2,516 book metadata obtained through the Google Books API and mapped into 14 DDC categories. The context enhancement strategy is implemented by integrating book titles and descriptions into a single text representation, while weighted cross-entropy loss, random oversampling, and simple data augmentation techniques are applied to address class imbalance issues. Model performance is evaluated based on accuracy, precision, recall, and F1-score metrics. Experimental results show that the proposed approach achieves an accuracy of 90.14% and a weighted F1-score of 90.15%, outperforming the baseline IndoBERT model, which only achieved an accuracy of 47.82% and a weighted F1-score of 47.06%. These findings indicate that the combination of weighted loss and contextual text representation can improve the semantic understanding of book metadata while reducing bias towards the majority class in Transformer-based DDC classification.
Analisis Dan Perancangan UI/UX Berbasis Teknologi Pada Company Profile Medicom Untuk Meningkatkan Aksesibilitas Dan Pengalaman Pengguna Akmal Firmansyah; Ilham Budi Trisetyo; Rizqya Chandra Muji Pratama; Fajar Mahardika
INFOKABIN (Informatika, Komputasi, Aplikasi dan Bisnis) Vol 1 No 1 (2026): Januari 2026
Publisher : Universitas Al-Irsyad Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36760/ifkb.v1i1.700

Abstract

The development of digital technology requires that PNC Student Activity Units (SAU) have a digital company profile that is not only informative but also easily accessible and provides an optimal user experience. This study aims to analyze and design technology-based UI/UX for the SAU company profile, focusing on improving accessibility and user satisfaction. The method used is User-Centered Design (UCD), including data collection through questionnaires and interviews with members, analysis of user needs, and development of an interactive prototype using responsive modern web technologies. Usability testing on 30 respondents showed an increase of 32% in user satisfaction scores and 29% faster information access compared to the previous version. The ease of navigation received an average score of 4.5 out of 5, indicating a significantly improved user experience. These findings demonstrate that implementing technology-based UI/UX design can enhance accessibility, efficiency, and user engagement in accessing SAU information within PNC
Co-Authors A.P, Fareza Maulana Abdillah, Muhammad Labib Abdul Hakim Prima Yuniarto Abdul Razak Naufal Abdul Razak Naufal Adam Prayogo Kuncoro Adelia Fitriani Adlan Nugroho Ahmad Zulfan Akmal Firmansyah Akrim Teguh Suseno Al’ Amin, M. Al’ Amin, M. Amin, M. Al' Anang Martoyo Andik Wijanarko, Andik Arie Aryanto Arif Nugroho, Adhitya Putra Aurora Dwi Khatulistian Aziz, Nadjwa Naela Bambang Sumantri, R Bagus Bambang Sumatri, Raden Bagus Desmana, Satriawan Dhanar Intan Surya Saputra Dhanar Intan Surya Saputra Dhanar Intan Surya Saputra Fazar Sidik Guntur Subari Hadi Jayusman Hasan Basri Hendra Marcos I Putu Dody Suarnatha Ihsan Alparisi Ilham Budi Trisetyo Inayatul Inayah Inayatur Robaniyyah Isep Saepudin Jayusman, Hadi Joko Purwanto Joko Purwanto Kabul Agus Purwanto Kholil Mustofa Luhtitisari, Luhtitisari Lutfi Syafirullah M. Al ‘Amin M. Azwan Merani, Sania Galuh Miftahul Khoiri Mohammad AL AMIN Moniroh, Nur Mubarok, Hilmi Muhammad Ghofinda Prasetia Muhammad Nur Faiz Muhammad Sandi Muhammad Yusril Ihzam Muhammad, Kukuh Muin, Muhammad Abdul Muin Noviana Safira Nugroho, Adlan Nugroho, Suryo Nur Azizah Nur Muniroh Nurul Alfiah Pari, Riki Aldi Prasetyanti, Dwi Novia Puji Cahniya Sari Purba, Angga Maulana Rahmawan Bagus Trianto Ramadhani, Khalifah Brilianti Ratih Ratih ratih ratih Riyadi Purwanto Riyadi Purwanto Rizki Ripai Rizqya Chandra Muji Pratama Saepudin, Isep Samsuri Yahya Samsuri Yahya Setiawan, Endri Shandy, Sony Veri Sidik, Fazar Sitaresmi Wahyu Handani, Sitaresmi Wahyu Suhenda Suhenda Suhenda, Suhenda Suseno, Akrim Teguh Tundo, Tundo Widya Pratiwi Yahya, Samsuri