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All Journal Saturnus: Jurnal Teknologi dan Sistem Informasi
David Sam Limbong
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Computer Science & IT

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Evaluasi Usability Sistem E-Voting Menggunakan System Usability Scale Pasca Perancangan Ulang Antarmuka David Sam Limbong; Hermawan Setiawan; Satria Tegar Bimantara; Reza Ardiansyah Yudhanegara
Saturnus: Jurnal Teknologi dan Sistem Informasi Vol. 4 No. 2 (2026): April : Saturnus: Jurnal Teknologi dan Sistem Informasi
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/saturnus.v4i2.1597

Abstract

Although cryptographic security is often the main concern in e-voting system development, practical implementation failures are frequently associated with poor user interfaces that increase cognitive load and voting errors. This study evaluates the effectiveness of User-Centered Design (UCD) interventions in improving usability and voter confidence in an e-voting system. A one-group pretest-posttest design was applied to 36 respondents representing novice voters. Usability was measured using the System Usability Scale (SUS) before and after the interface redesign. The intervention focused on visual hierarchy, navigation consistency, status visibility, and error prevention. The results show a statistically significant improvement, with the mean SUS score increasing from 69.10 in the marginal category to 95.76 in the excellent category. The paired sample t-test produced t(35) = -7.3441 with p < 0.0001, while Cohen's d reached 1.2130, indicating a large practical effect. The standard deviation also decreased from 21.98 to 3.09, demonstrating a more consistent user experience. These findings indicate that interface optimization is essential for strengthening accessibility, voting accuracy, and user trust in digital democracy systems.
Evaluasi dan Peningkatan Kualitas Interaksi Pengguna pada Sistem Informasi Akademik MASTER menggunakan User-Centered Design dan SUPR-Q Satria Tegar Bimantara; Muhammad Syaibani Al Hakim; Hermawan Setiawan; David Sam Limbong; Rahadian Ronggo Kusumo; Damar Damar
Saturnus: Jurnal Teknologi dan Sistem Informasi Vol. 4 No. 3 (2026): Juli: Saturnus: Jurnal Teknologi dan Sistem Informasi
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/saturnus.v4i3.1654

Abstract

The "MASTER" academic information system currently exhibits critical limitations in user experience. Heuristic evaluation identified major issues in consistency, standards, and recognition rather than recall (severity 4), causing high cognitive load and disorientation due to a flat-list navigation structure. This research aims to redesign the interface using the User-Centered Design (UCD) approach based on ISO 9241-210. Design solutions were developed to address user needs for structured navigation, task-hierarchy menu grouping, and quick access to the Semester Learning Plan (RPS) module. These solutions applied principles of visual hierarchy and the separation of academic and administrative functions. A subsequent evaluation using the SUPR-Q instrument with 30 respondents showed significant improvements in Loyalty (+1.20), Appearance (+0.72), and Trust (+0.70), achieving a 96.67% user preference rate for the new design. Although there was a slight decrease in usability (-0.06) indicating a temporary user adaptation period, findings demonstrate that the UCD application effectively reduces cognitive load, increases navigation efficiency, and enhances the overall user experience quality.
Co-Authors Damar Damar Hermawan Setiawan Muhammad Syaibani Al Hakim Rahadian Ronggo Kusumo Reza Ardiansyah Yudhanegara Satria Tegar Bimantara