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All Journal Jurnal Teknologi Informasi dan Ilmu Komputer Edu Komputika Journal Journal of Information Technology and Computer Science Jurnal Pengembangan Teknologi Informasi dan Ilmu Komputer Journal of Vocational and Career Education Proceedings Series of Educational Studies Jurnal Penelitian Pendidikan Journal of Smart Education and Learning Jurnal Pengabdian Masyarakat Teknologi Informasi dan Informatika
Purnawirawan, Okta
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Religion Arts Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Social Sciences Other

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Journal : journal of information technology and computer science

 1 
Designing and Evaluating the User Interface of a Socratic Dialogue Chatbot to Enhance Student Engagement in Online Learning Platforms Widjanarko, Alexander; Haq, Isri Amirul; Mubarok, Berlian Davis Dwi; Purnawirawan, Okta
Journal of Information Technology and Computer Science Vol. 11 No. 1: April 2026
Publisher : Faculty of Computer Science (FILKOM) Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25126/jitecs.111886

Abstract

History education in Phase F is often perceived as monotonous and dominated by rote memorization, with 92.9% of students feeling burdened and 89.3% feeling bored. Standard generative AI tools may worsen this issue by functioning as instant answering machines, fostering cognitive dependency. This study aims to describe the User Interface (UI) and User Experience (UX) design process of “Kak Sarah,” a Learning Management System (LMS) platform featuring a chatbot designed to act as a Socratic facilitator through historical role-play, and to evaluate its usability and impact on student engagement. The UI/UX development employed the Successive Approximation Model (SAM) integrated with the Design Thinking approach, consisting of empathize, define, ideate, prototype, and test stages. The platform’s usability was evaluated using the System Usability Scale (SUS) with 136 respondents, while its impact on engagement was tested on 312 Grade XI students across five high schools. Results indicate that the UI design successfully translated four narrative learning stages into an interactive interface. The usability evaluation produced a SUS score of 86.09 (Excellent / Grade A). Observation data and conversation logs showed that all students engaged in reflective thinking rather than accepting direct answers, supported by a 35.03-point increase in critical thinking scores (p = 0.005). These findings suggest that integrating SAM and Design Thinking can produce an effective Socratic chatbot interface that enhances student engagement in history learning.
Deep Learning-Based Edge Proctor System: A Resource-Efficient Multi-Modal Exam Monitoring Solution for Indonesian Schools Junaidi, Vicent Imanuel; Braniva, Petra Kanisia; Widjanarko, Alexander; Purnawirawan, Okta
Journal of Information Technology and Computer Science Vol. 11 No. 2: August 2026
Publisher : Faculty of Computer Science (FILKOM) Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25126/jitecs.2026112898

Abstract

Academic dishonesty in computer-based exams reaches 67.5% in Indonesia, threatening educational evaluation validity and undermining academic certificate credibility. This research develops the Edge Proctor System, a deep learning-based digital proctoring system integrating three detection modalities: object detection for identifying prohibited items, one-shot learning for identity verification, and audio recognition for detecting suspicious whispering. The research methodology employs systematic literature review and benchmark testing to compare YOLOv8n and COCO SSD performance. Data collection was conducted through interviews with the Head of Computer and Network Engineering Department and field testing with the Principal of SMK Kristen Petra Surabaya. Performance analysis utilizes inference time, FPS, and CPU usage metrics on edge computing architecture. Results demonstrate that COCO SSD achieves 79.05 ms inference time (10.9× faster than YOLOv8n), 9.09 FPS, and 78.43% CPU usage, 37-48% more efficient than previous studies. Stakeholder testing shows the system effectively enhances exam integrity with intuitive monitoring and resource-efficiency, suitable for massive implementation in Indonesian schools with limited technological infrastructure.
Development of the "Pulih" User Interface: A Smartwatch-Integrated Digital Counseling Application for Survivors of Post-Traumatic Stress Disorder due to Violence and Sexual Abuse Nur, Ahmad Zulfi’Azwan; Purnama, Primada; Widjanarko, Alexander; Iskandar, Firza Aurellia; Purnawirawan, Okta
Journal of Information Technology and Computer Science Vol. 11 No. 2: August 2026
Publisher : Faculty of Computer Science (FILKOM) Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25126/jitecs.2026112899

Abstract

The high prevalence of mental health disorders resulting from trauma caused by violence and sexual abuse has not been matched by adequate access to recovery services due to psychological barriers in the form of social stigma. This situation motivated the design of the “Pulih” interface, a smartwatch-based mental health support application developed using Research and Development (R&D) methods with a Design Thinking approach. This application integrates a Bidirectional Long Short-Term Memory (Bi-LSTM) deep learning architecture to analyze users’ Heart Rate Variability (HRV) and Resting Heart Rate (RHR) biometric data in real-time. AI testing results on the WESAD physiological dataset showed stable learning curve convergence without overfitting, achieving a training accuracy of 92.0%, validation accuracy of 90.5%, precision of 90.0%, recall of 91.0%, and an F1-Score of 90.5%. Meanwhile, an evaluation of the interface’s usability via the System Usability Scale (SUS) test with 27 respondents yielded an average score of 86.79 (falling into the ‘Excellent’ and ‘Acceptable’ categories with an A+ grade). The encrypted anonymous community feature further strengthens privacy aspects. In conclusion, Pulih has proven to possess trauma-sensitive technical reliability as well as high usability as an inclusive digital solution for the mental recovery of PTSD survivors.
Co-Authors 'Alam, Ghasa Faraasyatul Ade Novi Nurul Ihsani Aditya Rachmadi, Aditya Admaja Dwi Herlambang, Admaja Dwi Al-Ghifari, Faqih Muhammad Alam, Ghasa Faraasyatul Alfian, Afiif Al Hauzaan Aryo Pinandito Bambang Budi Wiyono Batita, Maurish Sofie Rahmi Braniva, Petra Kanisia Burhanuddin Burhanuddin Chamdani, Mochammad Rasya Dimas Chamdani Choirinnisa, Fadila Dedi Kuswandi DEWANTO, ALFIANSYAH PRADANA PUTRA Djoko Kustono Dwi Mubarok, Berlian Davis Fadella, Olivia Jihan Faizatul Amalia, Faizatul Farisi, Hariz Ferrel, Devan Firdaus, Thariq Fitra Abdurrachman Bachtiar Fitriani, Rhea Aulia Rizqika Godham Eko Saputro Hakim, Muhammad Adzinul Hakkun Elmunsyah Hanggara, Buce Trias Haq, Isri Amirul Hibatillah, Achmed I Made Sudana Ilmi, Noraniza Bahrotul Indah Indi Afifah Iskandar, Firza Aurellia Junaidi, Vicent Imanuel Khalid Rahman, Khalid M. Harlanu, M. Maghfiroh, Anik Maysa Putra, Galang Mia Hafizah Tumangger Mubarok, Berlian Davis Dwi Muhammad Usman, Muhammad Nasution, Citra Bunga Alfaritsa Ningtias, Mustika Nur, Ahmad Zulfi’Azwan Nurul Hidayat Nurvitasari, Yuvina Prameswary, Putri Pratama, Yuven Reksa Prima Zulvarina, Prima Punaji Setyosari Purnama, Primada Puspita, Chintya Paramita Puspitasari, Melina Dyah Anggraini Ramadhanti, Andani Zahira Satrio Hadi Wijoyo Shinta Maharani, Jeihan Sholihah, Muflihatus Sukmo Wardhono, Wibisono Surya Darma Santoso, Muhdlor Tibyani Tibyani, Tibyani Tri Afirianto, Tri Uun Hariyanti, Uun Vivando, Ardi Widjanarko, Alexander Widjanarko, Alexander Imanuel Wigyantara, Winanda Kusuma wijaya, khonsa ‘Alam, Ghasa Faraasyatul