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All Journal Jurnal EDUTECH Undiksha Jurnal Teknologi Informasi dan Pendidikan Jurnal Pendidikan Teknologi Informasi dan Vokasional Merkurius: Jurnal Riset Sistem Informasi dan Teknik Informatika
Darwin, Widya
Program Studi Informatika, Fakultas Teknik, Universitas Negeri Padang
Computer Science & IT Control & Systems Engineering Education Engineering

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Journal : Merkurius: Jurnal Riset Sistem Informasi dan Teknik Informatika

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Designing Student Attendance Application with WhatsApp Notification Integration to Increase Parent Involvement at SMA N 2 Lengayang Hilda Marliza; Jusmardi Jusmardi; Resmi Darni; Widya Darwin
Merkurius : Jurnal Riset Sistem Informasi dan Teknik Informatika Vol. 3 No. 2 (2025): Merkurius : Jurnal Riset Sistem Informasi dan Teknik Informatika
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/merkurius.v3i2.701

Abstract

The rapid development of information technology and telecommunications has driven companies and MSMEs to adopt desktop, mobile, and web-based applications to enhance operational performance. PT HPS Painan Padang, previously relying on manual ticket bookings, faced challenges in efficiency and susceptibility to brokering practices. To address this, a web-based travel ticket booking application was developed, enabling customers to book tickets online more practically, quickly, and conveniently, anytime and anywhere. The integration of Natural Language Processing (NLP) technology in the form of a chatbot further enhances service efficiency and responsiveness. This feature provides real-time information on departure schedules, seat selection, and payment transactions while also supporting sentiment analysis and swift responses to customer feedback, ultimately improving service quality. The application, built using PHP, MySQL, and CodeIgniter with a Prototype development approach, adapts to changing market demands. Testing via GTmetrix on the https://desistravel.xyz/backend page demonstrated excellent performance with an 88% Performance score, 95% Structure score, and optimal Web Vitals metrics, indicating a fast, responsive, and stable platform. The final product is a user-friendly web-based ticket booking application supported by an intelligent chatbot, offering a seamless user experience, enhancing customer satisfaction, and streamlining the travel booking process efficiently.
Implementasi Algoritma Kriptografi Hybrid AES dan RSA dalam Rancang Bangun Aplikasi Bank Sampah Pancadaya Berbasis Web untuk Keamanan Data Transaksi Nasabah Mardhyah Fathania ‘Izzati; Widya Darwin
Merkurius : Jurnal Riset Sistem Informasi dan Teknik Informatika Vol. 3 No. 5 (2025): September : Merkurius : Jurnal Riset Sistem Informasi dan Teknik Informatika
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/merkurius.v3i5.1036

Abstract

This research aims to develop a transaction data security system on the web-based Pancadaya Waste Bank application by applying a hybrid cryptographic algorithm that combines Advanced Encryption Standard (AES) and Rivest Shamir Adleman (RSA). The problem faced in the previous system is the weak recording and security of customer transaction data, because the process is still carried out manually so that it is prone to recording errors, loss of important information, and potential misuse of data by unauthorized parties. To answer these problems, this study uses the Rapid Application Development (RAD) method which allows the application development process to be carried out quickly, flexibly, structured, and according to user needs. The research method used was a qualitative approach with interview techniques with the management of the Pancadaya Waste Bank and the Environment Office, as well as an in-depth literature study on the application of hybrid cryptographic algorithms in modern information systems. The system is built using the PHP programming language, MySQL database, and OpenSSL library as the main support for the data encryption and decryption process. The implementation of the algorithm is carried out by encrypting transaction data using AES for efficiency and speed, then the AES key is secured through RSA to ensure a higher level of security while preventing illegal access. The test results showed that the system was able to encrypt and decrypt transaction data in real-time, as well as display transaction results in the form of digital notes on deposit and balance withdrawal activities. In addition, performance tests using GTmetrix showed that the application has excellent speed, stability, and processing efficiency, making it feasible to be widely implemented in Pancadaya Waste Bank operations.
Co-Authors . Ridwan Ade Kurniawan Ahyanuardi Ahyanuardi Deswina, Melri Fernandes, Erik Hilda Marliza ilham yuliady Jusmardi Mardhyah Fathania ‘Izzati Melri Deswina Novi Febrianti Novi Febrianti Rahmadani Rahmadani Resmi Darni Tuan, Bui Ngoc Zulfadli Zulfadli