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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Justek : Jurnal Sains Dan Teknologi JOURNAL OF SCIENCE AND SOCIAL RESEARCH Jurnal PTI (Jurnal Pendidikan Teknologi Informasi) JURTEII: Jurnal Teknologi Informasi Journal Of Computer Science And Technology Journal Of Indonesian Social Society
Rahayu Trisetyowati Untari
Universitas PGRI Sumatera Barat
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Journal : journal of computer science and technology

 1 
Development Of A QR Code-Based Online Attendance Mobile Application At SMK Negeri 1 Talamau Hayati Ikhwani; Rahayu Trisetyowati Untari; Randika Farike Bania
Journal of Computer Science and Technology (JOCSTEC) Vol 4 No 3 (2026): JOCSTEC - September
Publisher : PT. Padang Tekno Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59435/jocstec.v4i3.805

Abstract

The attendance system at SMK Negeri 1 Talamau has so far been focused mainly on teachers and relies on a fingerprint method that frequently experiences problems such as reading failures, system errors, and delayed data synchronization. This research aims to develop a QR Code-based online attendance mobile application that can be used by both teachers and students in real time. The research method used is Research and Development (R&D) with the Waterfall software development model, covering the stages of requirements analysis, design, implementation, testing, deployment, and maintenance. The application was developed using WebApp as the mobile platform, Laravel as the backend, and MySQL as the database. The student attendance process is carried out by scanning a QR Code displayed by the teacher, after which attendance data is automatically stored in the database via a REST API. System testing was conducted through alpha testing (white box and black box) as well as beta testing involving experts and end users. The test results show that all primary system functions run according to the design. Beta testing with experts obtained an average score of 86%, categorized as very good, while beta testing with users obtained an average score of 96%, also categorized as very good. The developed application is considered feasible for use and able to improve the effectiveness and efficiency of the attendance process at the school.
Development Of A Web-Based Course Scheduling Information System For The Information Technology Study Program At Universitas PGRI Sumatera Barat M Egi Alfarizi; Ade Pratama; Rahayu Trisetyowati Untari
Journal of Computer Science and Technology (JOCSTEC) Vol 5 No 1 (2027): JOCSTEC - January
Publisher : PT. Padang Tekno Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59435/jocstec.v5i1.865

Abstract

Course timetable preparation in the Information Technology Study Program at Universitas PGRI Sumatera Barat is still performed in spreadsheets, typically requires three to five days, and can produce instructor, class, or room conflicts. This study develops a web-based scheduling information system that centralizes timetable data, detects collisions automatically, and offers alternatives with support from the Google Gemini API. Development followed the Waterfall System Development Life Cycle, comprising requirements analysis, design, implementation, testing, deployment, and maintenance. The application was built with PHP, Laravel, and MySQL. A deterministic rule identifies overlapping allocations involving the same instructor, class, or room on the same day. Gemini is used only to rank and explain feasible candidates; the application revalidates each recommendation, and the Study Program Secretary retains final approval. Black-box testing of ten functions achieved a 100% success rate. Beta testing produced an average score of 89.22% from three experts and 89.79% from two users, with both results classified as Very Good. The findings indicate that the system is highly feasible for integrated course timetable preparation and administration.
Co-Authors Ade Pratama Bambang Surpiatno Diana Susanti Erion Erion Ernisya Emilya Faiza Rini Haris Kurniawan Hayati Ikhwani M Egi Alfarizi Mourend Devegi Muhammad Yahya Nadia Putri Pramudya Azis Rahmi Insanniatul Khairah Randika Farike Bania Rayhand Ferdiano Resmi Zulfarik Riandi Riandi Samudra, Ami Anggraini Shevti Arbekti Arman Thomson Mary, Thomson Vivi Fitriani