Journal of Computer Science and Informatics Engineering (J-Cosine)

REST API Development of the Mataram Scout Information System for Member Management and Activity Reporting using Scrum Method

2025-06-30T23:23:06+08:00

The development of a web-based Scout Information System for Kwartir Cabang Mataram aims to improve the management of member data and activities through a REST API. The current data management process, relying on tools like Google Forms and Microsoft Excel, is inefficient and error-prone. To address these issues, the proposed system integrates all levels of scout organization within the Mataram City, from school-based scout units (gugus depan) to the city level scout organization (kwartir cabang), creating a centralized platform for real-time data access. Built using the Scrum method, the system is developed through iterative sprints and regularly improved based on stakeholder feedback. The REST API architecture enables seamless communication between the back-end and front-end components, ensuring system scalability, flexibility, and future integration with other platforms, including mobile applications. Black-box testing guarantees the functionality of the system’s endpoints. This system is expected to enhance operational efficiency and reduce administrative delays.

Development of Scholarship Information and Consultation Center Website for Straya Institute Using Prototyping Method

2025-06-30T23:23:06+08:00

The rapid development of information technology has had a considerable impact on the efficiency of education administration, especially in the management of scholarship information. However, many institutions still experience difficulties in handling data and limited access to scholarship information. The purpose of this research is to create a Scholarship Information and Consultation Center website for Straya Institute that can overcome these difficulties through prototyping. The prototyping approach allows for iterative development, ensuring that the system responds to user needs through continuous feedback and revision. The system is intended to facilitate access to scholarship information, program registration, and consultation with users. Evaluation methods include system testing using black-box testing and User Acceptance Testing (UAT), involving administrative and general users. The results showed a high level of user satisfaction (average UAT score of 98.2%), verifying the efficiency, usability, and usefulness of the system. This research advances the field by providing an effective digital solution for scholarship management, improving accessibility, and optimizing administrative operations. Future research could look at other enhancements such as automated scholarship file selection and AI-powered recommendation systems to improve user experience.

Prototyping Interface for a Website-Based Visitor Management System of Gili Tramena: A Design Thinking Approach

2025-06-30T23:23:06+08:00

Gili Tramena which stands for Gili Trawangan, Gili Air and Gili Meno. The three Gili Islands are one of the tourist destinations that are visited by many tourists, both local and foreign tourists because of their underwater power. The high flow of tourists has both positive and negative impacts from an economic, social and environmental perspective. The positive impacts of increased tourism include economic improvement in Gili Tramena, globalization of Indonesian tourism, and improvement of public infrastructure. The negative impacts of increased tourism include cultural change, economic dependency, degraded water quality, and damage to coral reefs. These negative impacts will continue if the number of tourists continues to increase. One way to prevent this is to limit the number of visitors to Gili Tramena each day. Tourist data collection, which is still done manually, is also the reason for the difficulty in controlling tourists entering Gili Tramena. One way to streamline visitor data collection is through a Visitor Management System (VMS). This VMS will help to collect data systematically. Therefore, it is necessary to design a UI/UX VMS information system to limit and control visitors entering Gili Tramena. The UI/UX design of the Tramena VMS was carried out using the Design Thinking approach with 5 stages, namely Emphatize, Define, Ideate, Prototype, and Test. Based on the results of testing using the SUS (System Usability Score) method, a score of 85.92 was obtained, which indicates that this system is included in the "Excellent" category, with the UI/UX design meeting high standards in terms of usability, efficiency, and overall user experience. It is expected that this system can be further developed with the actual implementation of the designed design.

Information Systems Security Risk Management Using the COBIT 2019 Framework and NIST 800-30 on the Website People's Representative Council NTB

2025-06-30T23:23:07+08:00

This research analyzes information security risk management on the website of the Regional People's Representative Council (DPRD) of West Nusa Tenggara (NTB) using the COBIT 2019 and NIST 800-30 frameworks. The main objective of this research is to identify weaknesses in existing security controls and provide recommendations for improvements to deal with cyber threats, specifically DDoS, cross-site scripting (XSS), deface, and SQL injection attacks, which can disrupt service availability and data security. The research methods included interviews with five key stakeholders who have responsibilities in information security, as well as the distribution of questionnaires to ten IT staff. Data from the interviews and questionnaires were analyzed using risk mapping according to the COBIT 2019 framework and NIST 800-30 to identify capability gaps. The results showed specific weaknesses in the management of controls against XSS and DDoS threats, especially in the aspects of monitoring and incident response. The research conclusions emphasize the need to improve risk management through the addition of more up-to-date security technology, increased security awareness and training for staff, and regular security audits to ensure the sustainability of risk management. Recommendations include the implementation of a more sophisticated threat detection system, periodic training for staff, and a more structured incident response procedure to improve security and ensure continuity of public services through the DPRD NTB website.

Cost-Effective Virtual Reality Simulation for Chemistry Practicum using Hand Gesture

2025-06-30T23:23:07+08:00

We developed a virtual reality (VR) simulation of a chemistry practicum that incorporates the act of pouring liquid using hand gestures. This addresses the need for safe, cost-effective alternatives in chemistry education while still exercising practicum motor skills. Our simulation centers on the practicum of making picric acid, which presents significant both cost and safety challenges. Utilizing Leap Motion hand gesture technology as an input method offers a more affordable option than traditional VR controllers. We conducted usability testing with 16 participants, including a lecturer and undergraduate students from multiple backgrounds, to evaluate the application’s effectiveness and gather feedback. Results indicate that the simulation works as intended and accurately represents the practicum, achieving marginal usability. The application can reduce costs by at least IDR 658,638.00 per session and eliminates hazards associated with handling picric acid, highlighting its potential as a valuable educational tool.

Comparative Analysis of ResNet-50 and VGG16 Architecture Accuracy in Garbage Classification System

2025-06-30T23:23:07+08:00

Population growth and urbanization have resulted in an exponential increase in waste generation, causing serious environmental and health risks. Garbage classification is essential to optimize the recycling process and minimize waste in landfills. In particular, Convolutional Neural Networks (CNN) and Deep Learning, has shown effectiveness for image classification systems such as waste sorting. This research addresses the gap in comparative analysis of CNN architectures for garbage classification by comparing the performance of VGG16 and ResNet-50. This study's objective is to identify the most effective architecture for categorizing six different categories of garbage: cardboard, glass, metal, paper, plastic, and trash. Using a dataset of 2,467 photos, the models were trained, validated, and tested using improved preprocessing and data augmentation techniques. The results showed that VGG16 obtained slightly greater accuracy (97%) than ResNet-50 (96%), indicating that VGG16 could be a better architecture for garbage classification systems. This study helps further development of automated waste sorting systems for recycling management, paving the way for more sustainable waste solutions. Hope for future research, this study can help in expanding the dataset, then using other architectures to improve the accuracy of the model, and help people to process garbage according to the type.