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All Journal International Journal of Informatics and Communication Technology (IJ-ICT) Jurnal Sains dan Teknologi Jurnal Penelitian Hutan dan Konservasi Alam Jurnal Ilmiah Kursor INFOKAM POSITIF Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Jurnal Sains Dan Teknologi (SAINTEKBU) JITK (Jurnal Ilmu Pengetahuan dan Komputer) Bioedukasi: Jurnal Pendidikan Biologi Jurnal ICT : Information Communication & Technology Jurnal Ilmiah ILKOMINFO - Ilmu Komputer & Informatika E-JURNAL JUSITI : Jurnal Sistem Informasi dan Teknologi Informasi Jurnal Eduscience (JES) Journal of Applied Engineering and Technological Science (JAETS) Generation Journal International Journal of Advances in Data and Information Systems Eduvest - Journal of Universal Studies Ranah Research : Journal of Multidisciplinary Research and Development Jurnal Sistem Informasi The Indonesian Journal of Computer Science
Harry Budi Santoso
Fakultas Ilmu Komputer Universitas Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Neuroscience Public Health Social Sciences Transportation Other

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Usability Evaluation and Alternative Interface Design Recommendations for the GoFood Merchant Application Saputro, Singgih Rochmad; Santoso, Harry Budi
International Journal of Advances in Data and Information Systems Vol. 7 No. 1 (2026): April 2026 - International Journal of Advances in Data and Information Systems
Publisher : Indonesian Scientific Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59395/ijadis.v7i1.1496

Abstract

The GoFood Merchant application serves as a critical platform for merchant onboarding and product activation within Indonesia’s digital food delivery ecosystem. Despite its key role, user feedback indicates persistent usability issues, particularly in corporate onboarding. This study evaluated and improved the usability of GoFood Merchant by focusing on workflow complexity, information clarity, and interface consistency. A mixed-methods exploratory case study was conducted involving quantitative and qualitative data collected from merchant owners, merchant staff, and IT experts. Quantitative data were obtained using the system usability scale (SUS) questionnaire, while qualitative data were collected through task-based usability testing, open-ended questions, and an evaluation based on heuristic design principles derived from Shneiderman’s eight golden rules of interface design. The initial evaluation of the existing (“as-is”) interface yielded an SUS score of 63.83, indicating usability below the accepted benchmark, and revealed 10 consensus usability issues related to complex task flow, unclear system feedback, and inconsistent interface elements. Based on these findings, a redesign was developed using user-centered design (UCD) principles through iterative low-fidelity and high-fidelity prototyping. The redesigned (“to-be”) prototype was subsequently evaluated using the same instruments. Usability was significantly improved, with an SUS score of 85 and average principle-based evaluation ratings above 4.0 across all interface design principles derived from Shneiderman’s eight golden rules. These findings demonstrate that systematic usability evaluation combined with iterative UCD-based redesign can effectively enhance user satisfaction, efficiency, and comprehension in complex onboarding systems. This study provides validated design recommendations for improving GoFood Merchant onboarding and contributes empirical evidence for usability-driven interface redesign in large-scale mobile platforms.
A Usability Evaluation of an E-Commerce Checkout System Using SUS and Usability Testing Pahlevi, Reynald Daffa; Santoso, Harry Budi
International Journal of Advances in Data and Information Systems Vol. 7 No. 1 (2026): April 2026 - International Journal of Advances in Data and Information Systems
Publisher : Indonesian Scientific Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59395/ijadis.v7i1.1498

Abstract

This study focuses on evaluating and improving the usability of the XYZ Checkout System, which previously exhibited several issues that negatively affected transaction completion, including unclear information hierarchy, inconsistent interface behaviour, and inefficient checkout flows. To address these challenges, the research adopted a User-Centered Design (UCD) approach supported by a mixed-method evaluation strategy, combining the System Usability Scale (SUS), usability testing, and open-ended questions. A between-subject research design was employed, involving two independent groups of participants. The initial as-is evaluation was conducted with 35 users and produced an average SUS score of 69.57, indicating marginal usability and the presence of notable interaction barriers. Based on the findings, a high-fidelity to-be prototype was designed using established usability heuristics and UCD principles. The redesigned interface was subsequently evaluated by a different group of 35 users, resulting in a significantly improved average SUS score of 96.64, classified as Excellent with high acceptability. Overall, the results demonstrate that the proposed design improvements successfully enhanced interface consistency, clarity of interaction, and checkout efficiency, emphasizing the critical role of systematic usability evaluation in optimizing e-commerce checkout systems.
Enhancing E-Insurance Mobile Applications through Cognitive Walkthrough and System Usability Scale (SUS): A Case Study of My Taspen Life Diarto , Nur; Santoso, Harry Budi
International Journal of Advances in Data and Information Systems Vol. 7 No. 1 (2026): April 2026 - International Journal of Advances in Data and Information Systems
Publisher : Indonesian Scientific Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59395/ijadis.v7i1.1499

Abstract

The digital transformation of the insurance sector has necessitated mobile services with superior usability. The My Taspen Life mobile application has experienced low user satisfaction attributed to its suboptimal user interface (UI) and user experience (UX). This study aimed to evaluate the application's usability and propose a validated high-fidelity prototype employing a User-Centered Design (UCD) approach. A mixed-methods evaluation comprised a System Usability Scale (SUS) survey, a Cognitive Walkthrough with experts, and Usability Testing. The identified issues were mapped against Shneiderman’s Eight Golden Rules of Interface Design to develop an adequate solution. The initial results showed an average SUS score of 65.51, below the global SUS average, and identified critical constraints in layout, navigation, and visual representation. Following the redesign, the prototype was re-evaluated by 12 participants, equally distributed between employees and external users. The final evaluation demonstrated a significant improvement, achieving a SUS score of 83.54 (Grade A, "Excellent"). Task scenario testing further confirmed that the new interface significantly reduced user dissatisfaction. We conclude that implementing UCD-based intervention can address significant usability problems in e-insurance applications.
Usability Evaluation and Solution Design Improvement of OCTO Friends as Banking Referral Application Utami, Aisyah Nurlita; Santoso, Harry Budi
The Indonesian Journal of Computer Science Vol. 13 No. 1 (2024): The Indonesian Journal of Computer Science
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i1.3704

Abstract

OCTO Friends application was developed to allow customers to directly participate in banking product referral program, has not met expectations and targets. Only 10.6% of the 39,105 members actively provided referrals, and business conversion rate was only 10% of the target. This study aims to evaluate the application's usability and generate recommendations for interface design improvement. A mixed methods research approach was used, including quantitative research through user needs questionnaires and System Usability Scale (SUS), along with qualitative research through in-depth interviews and usability testing. Data collection through questionnaires involved 104 respondents, resulting in a list of user needs and SUS score of 66. The results showed that OCTO Friends is requires some improvements. In-depth interviews and usability testing for six main functions led to 46 interface design improvements, especially improvements in referral data input, follow-up referral, and incentive information functions as these are primary functions of referral application.
Offline-Capable Mobile Application: A Systematic Literature Review of Research Trends, Synchronization Mechanisms, UI/UX Patterns, and Usability Evaluation Ningrum, Nenden Citra Softwatul; Nan Cenka, Baginda Anggun; Santoso, Harry Budi
Ranah Research : Journal of Multidisciplinary Research and Development Vol. 8 No. 3 (2026): Ranah Research : Journal Of Multidisciplinary Research and Development
Publisher : Dinasti Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/rrj.v8i3.2058

Abstract

Limited internet connectivity in developing regions creates a significant digital divide and hinders the adoption of essential digital services in sectors such as health, agriculture, finance, education, and sustainability. This study presents a Systematic Literature Review (SLR) that is sought in the range of 2018-2025, with nine selected studies to synthesize research trends, technical approaches, UI/UX patterns, and evaluation methods on mobile applications that support offline mode. The results of the analysis show that there is an increase in research attention in the 2021–2025 period and show that mobile applications with offline capabilities are relevant in various domains. From a technical point of view, offline support is generally achieved through local storage mechanisms, delayed synchronization, and data integrity controls such as hashing and validation. From a UI/UX perspective, explicit connection status labels, local save confirmations, and sync summaries play an important role in increasing system transparency and maintaining user trust. In addition, recent studies have begun to adopt a broader evaluation approach, including PACMAD-based assessments and scenario-based simulations to test the resilience of systems under conditions of limited or unavailable connectivity. These findings provide practical insights for designers and developers in building mobile applications that are resilient, inclusive, and capable of supporting users in environments with limited network infrastructure.
An Indonesian Adaptation of the Bot Usability Scale Full Version (BUS-42) Harry Budi Santoso; Budiarti; Martin Schrepp; Mira Suryani; Rizal Fathoni Aji; Baginda Anggun Nan Cenka; Erza Janitradevi Nadine; Dony Abdul Chalid
Jurnal Sistem Informasi Vol. 22 No. 1 (2026): Vol. 22 No. 1 (2026): Jurnal Sistem Informasi (Journal of Information System)
Publisher : Faculty of Computer Science Universitas Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Bot Usability Scale (BUS-42) is a tool specifically designed to evaluate chatbot usability, yet it has not been extensively applied in Indonesian contexts. This study aimed to adapt the BUS for Indonesian users, following Beaton’s cross-cultural adaptation framework to ensure cultural and linguistic relevance. The Indonesian adaptation was tested with 103 participants from the Faculty of Computer Science at one of large public universities in Indonesia, resulting in a high Cronbach’s Alpha of 0.922, confirming strong internal consistency. The adapted BUS-42 covers various usability attributes, including ease of use, accessibility, and response speed, making it suitable for assessing chatbot usability in academic settings. Findings suggest that the Indonesian-adapted BUS-42 is a reliable and comprehensive tool, applicable to different domains beyond education, such as e-commerce and government services. Future research should focus on extending BUS-42 testing to diverse chatbot applications and performing validity and sensitivity analyses to optimize its utility across various Indonesian user contexts.
Daya Antimikrobia Sarang Lebah Madu Trigona spp terhadap Mikrobia Patogen YULIANA, RENITA; SUTARININGSIH, ENDANG; SANTOSO, HARRY BUDI; RIENDRASARI, SEPTIANTINA DYAH
Bioedukasi: Jurnal Pendidikan Biologi Vol 8, No 1 (2015): Bioedukasi: Jurnal Pendidikan Biologi
Publisher : Department of Biology Education Faculty of Teacher Training and Education Sebelas Maret Un

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/bioedukasi-uns.v8i1.3546

Abstract

Potensi sarang lebah madu Trigona spp untuk menghasilkan antimikrobia sangat tinggi, tidak hanya pada bagian propolis, melainkan keseluruhan bagian dari sarang yang terdiri dari kantong madu, kantong polen, kantong telur, dan penutup sarang. Sarang lebah madu Trigona spp berfungsi sebagai tempat perlindungan lebah dari predator maupun parasit seperti fungi, jamur dan virus. Sarang lebah madu Trigona spp dapat dijadikan alternatif sumber antimikrobia alami sehingga diperlukan penelitian untuk mendeteksi aktivitas tersebut. Tujuan dari penelitian ini meneliti daya antimikrobia yang dilepaskan sarang lebah madu Trigona spp terhadap pertumbuhan mikrobia dan meneliti komponen kimia utama yang terkandung dalam sarang lebah madu Trigona spp. Metode untuk ekstraksi sarang menggunakan ethanol 70% secara maserasi dan uji antimikrobia yang terdiri dari antibakteri dan antifungi dilakukan dengan metode difusi sumur. Rancangan penelitian yang digunakan dalam bentuk rancangan acak lengkap (RAL). Data yang diperoleh dari hasil pengamatan di laboratorium dianalisis dengan menggunakan statistik parametrik yaitu One way  ANOVA. Hasil penelitian menunjukkan aktivitas antimikrobia sarang lebah madu Trigona spp berpengaruh menghambat pertumbuhan mikrobia patogen uji dengan konsentrasi hambat minimal 1% (v/v). Senyawa kimia utama sebagai antimikrobia berasal dari asam lemak dan fenol.
Co-Authors Afirando, Rio Agri Fina Ahmad, Mubarik Amran Suatkab Amrisandha Pranantya Prasetyo Arief Ramadhan Arief Ramadhan Arif Rinaldi Dikananda Arminditya Fajri Akbar Athaya, Hisyam Baginda Anggun Nan Cenka Budiarti Budiarti Budiarti, Budiarti Choirul Anam Dadang Sudrajat Darmin Karim Deden Sumirat Hidayat, Deden Sumirat Diarto , Nur Dony Abdul Chalid Endang Sutariningsih Endina Putri Purwandari Endina Putri Purwandari Erza Janitradevi Nadine Fachri Munandar Harjanto Prabowo Harjanto Prabowo Indra Sensuse, Dana Kasiyah Junus Kharisma Alivia Nastiti Lawanto, Oenardi Lina Fitra Mannix, Ilma Alpha Martin Schrepp Mhd. Adhitiya Okta Riyandi Michael, Jahns Mira Suryani Mochammad Aldi Kushendriawan Mubarik Ahmad Muh Syaiful Romadhon Nan Cenka, Baginda Anggun Ningrum, Nenden Citra Softwatul Nurhaedah M Oenardi Lawanto Pahlevi, Reynald Daffa Panca O. Hadi Putra Panca O. Hadi Putra Panca Oktavia Hadi Putra Panca Oktavia Hadi Putra Paramartha, Putu Agya Prasetyo, Amrisandha Pranantya Pratama, Faiz Rizqullah Purwaningsih, Erisva Hakiki Putra, Panca Hadi Putra, Panca O. Hadi Putra, Panca Oktavia Hadi Raditya Danar Dana Ratu Syafianisa Nuzulismah RENITA YULIANA, RENITA Ridwan Afandi Rio Afirando Rizal Fathoni Aji Ronny Faslah Ronny Faslah, Ronny Rozanah Saputro, Singgih Rochmad Satrio Bhaskoro Yudhoatmojo Satrio Pradono Suryodiningrat SEPTIANTINA DYAH RIENDRASARI, SEPTIANTINA DYAH Singgih Dwi Saputro Sujono - Sujono Sujono Suryodiningrat, Satrio Pradono Utami, Aisyah Nurlita Vederico Pitsalitz Sabandar Wahyudi lsnan