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All Journal Jurnal Teknimedia: Teknologi Informasi dan Multimedia JUSTINDO (Jurnal Sistem dan Teknologi Informasi Indonesia)
Devi Chrisman Lase
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Computer Science & IT Control & Systems Engineering Engineering

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Certificate Printing System Integrated with RESTful API JSON on Quistiq Application Dorthea Elvita Harefa; Fikrah Kristo Fotriman Waruwu; Dian Maharani Buulolo; Christine Jenny Puspita Zega; Ester Ratna Cahyani Zega; Devi Chrisman Lase
JUSTINDO (Jurnal Sistem dan Teknologi Informasi Indonesia) Vol. 11 No. 1 (2026): JUSTINDO
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/justindo.v11i1.4991

Abstract

Quistiq is a web-based online quiz application using native PHP. The certificate creation process for passing participants is still manual, requiring 5-7 minutes per certificate with a 12% error rate. This research develops a certificate printing system integrated with Quistiq through RESTful API JSON to automate graduation validation and certificate printing. The research method uses Software Development Life Cycle (SDLC) Waterfall model including requirements analysis, design, client-server architecture design, implementation using native PHP, MySQLi, Bootstrap, CSS, and JavaScript with JSON format data exchange, as well as testing and maintenance phases. Functionality testing uses black-box testing method on 6 test cases and API performance testing uses Postman with 100 requests. The test results show that the system has a functionality success rate of 99.2% with all features running according to specifications. API performance shows an average response time of 1.9 seconds, PDF certificate generation time of less than 2 seconds, and request success rate of 99.2%. The system successfully increases the efficiency of the certificate creation process by 85% compared to the manual process, reduces input data errors from 12% to 0.8%, and ensures certificate format consistency. The implementation of RESTful API JSON proves effective in automating the certificate printing process and significantly improving system accuracy and efficiency.
MEDIA PEMBELAJARAN DIGITAL MATA PELAJARAN SEJARAH KEBUDAYAAN ISLAM DI SMP IT PLUS AL-BURUJ NW SIKUR BERBASIS ANDROID Fitriani, Fitriani; Ma'we, Hannatul; Windrawan Robipul Hakim; Marham Jupri Hadi; Devi Chrisman Lase
TEKNIMEDIA: Teknologi Informasi dan Multimedia Vol. 6 No. 2 (2025): Desember 2025
Publisher : Badan Penelitian dan Pengabdian Masyarakat (BP2M) STMIK Syaikh Zainuddin NW Anjani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46764/teknimedia.v6i2.330

Abstract

Instructions The development of digital technology has brought major changes in the world of education, including in the method of delivering learning materials. The subject of Islamic Cultural History (ISHC) at SMP IT Plus Al-Buruj NW Sikur still faces the challenge of low student learning interest due to conventional methods that are less interactive. This study aims to design and build Android-based digital learning media to increase the effectiveness and attractiveness of ISHC learning. The application developed includes features of learning materials, videos, practice questions and user profiles, using the Java programming language and SQLite database through the Android Studio platform. The methods used in this study include literature studies, observations and interviews. In addition, system modeling is carried out using the Unified Modeling Language (UML) approach through Use Case, Activity and Class Diagram diagrams. The test results show that this application can support ISHC learning in a more flexible, interactive, and interesting way, both for use in and outside the classroom. This application is expected to be an effective digital solution.
Co-Authors Christine Jenny Puspita Zega Dian Maharani Buulolo Dorthea Elvita Harefa Ester Ratna Cahyani Zega Fikrah Kristo Fotriman Waruwu Fitriani Fitriani Hadi, Marham Jupri Ma'we, Hannatul Windrawan Robipul Hakim