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The development of renewable energy, particularly Solar Power Plants (PV), requires a reliable, real-time, and easily accessible electrical energy monitoring system to ensure optimal system performance. This study aims to design and implement an Internet of Things (IoT)-based electrical energy monitoring system for PV using the NodeMCU ESP32 microcontroller, the PZEM-004T sensor for measuring electrical parameters, and the Node-RED platform as the data visualization interface. The developed system is designed to monitor voltage, current, power, energy, frequency, and power loss in real time, and then display the data in the form of numerical values, graphs, and indicators on a dashboard accessible through a local network. The research method includes hardware design, software development (sensor reading, data processing, and communication), integration with Node-RED, and system testing on a small-scale PV installation. The test results show that the system is capable of monitoring electrical parameters in a stable and responsive manner. Variations in sunlight intensity were found to affect the current and power produced by the solar panels, whereas the inverter output voltage tended to remain within normal operating ranges. The Node-RED dashboard display was considered informative and helpful for users in monitoring and analyzing PV performance. Based on these results, it can be concluded that the IoT-based electrical energy monitoring system designed in this study functions well and is feasible for application in residential or educational-scale PV installations. The system still has the potential for further development through cloud service integration, the addition of environmental sensors, and enhancements to data analysis features and user interface design.

The advancement of information technology has had a significant impact across various sectors, including healthcare. The digitalization of healthcare services has become a solution to improve efficiency, effectiveness, and accessibility for the public. Puskesmas Selindung still uses a manual patient registration system, which leads to several issues such as long queues, extended waiting times, and the risk of lost or damaged patient records. Based on visit data, the number of patients coming to Puskesmas Selindung has increased each year. Therefore, a digital queue system is needed to optimize the patient registration process. This research aims to analyze and design an Android-based patient registration queue application to improve service efficiency at Puskesmas Selindung. The research methods include system requirements analysis, user interface design, and the development of core features to support the online patient registration process. The implementation of this application is expected to reduce long queues, speed up administrative processes, and make it easier for patients to access healthcare services more effectively and accurately. With this Android-based system, the quality of healthcare services at Puskesmas Selindung is expected to improve significantly.

Barru Regency tourism has a variety of tourist attractions, but information related to the location and potential of tourism has not been digitally integrated, making it difficult for tourists and the government to access data. This study aims to design and build a web-based Geographic Information System (GIS) that can map the location of tourist attractions in Barru Regency interactively, easily accessible, and equipped with supporting information in the form of descriptions, types of tourism, photos, and travel routes. The research method used is Research and Development (R&D) with the stages of tourist attraction surveys, interface design, feature development, and system testing. The results of the study are in the form of a website "Web-Based Geographic Information System for Mapping Tourist Attractions in Barru Regency" which is able to present tourist information systematically and easily understood. The conclusion of this study shows that the developed system can be a supporting medium in disseminating tourism information, helping tourists find tourist locations, and supporting the local government in managing and developing the tourism sector based on spatial data. This application also has the potential to be an educational and promotional tool to increase tourist visits to Barru Regency

The development of information technology requires public institutions to provide accessible and transparent information services. Polsek Kota Kisaran still faces limitations in delivering information to the public through digital media. This study aims to design and implement a profile website as a public information medium that supports service transparency. The research uses a qualitative descriptive approach with data collection through observation, informal interviews with police officers, and documentation. System development includes requirement analysis, system modeling using Unified Modeling Language (UML), interface design, and website implementation. The results indicate that the developed website is able to present structured information such as institutional profiles, organizational structures, SKCK procedures, SPKT services, news, and activity documentation. The implementation of this website facilitates public access to police information and improves the effectiveness of information dissemination. This study is expected to support digital-based public services at the local police level and strengthen public trust through transparent information delivery.

Digitalization demands the MSME sector, including barbershops, to adopt technology in reservation management and marketing. Many barbershops still use manual systems, causing problems such as irregular queues, service delays, and suboptimal promotions. This study formulates how to design an information system that can integrate reservation and marketing functions into a single web-based platform. The objective is to produce an efficient, secure, and user-friendly information system design for both barbershop managers and customers. The method used is the Design Science Research approach with a waterfall system development model, involving needs analysis, system design, database design, and user interface design. The design results were validated by experts and users with a satisfaction rate of over 85%, indicating that the designed system aligns with the operational needs of barbershops. The conclusion is that the developed information system can enhance operational efficiency and customer experience, and is suitable for implementation in the barbershop service sector of SMEs.

This research is entitled “Implementation of Lumi H5P in Mathematics Learning Media at SDK PERO Using the MDLC Method.” The aim of this research is to create a digital-based interactive learning medium designed to enhance students’ understanding of the subject matter. media that can help students understand mathematics lessons, particularly on the topics of whole numbers and multiples, in an engaging and easy-to-understand way. The approach applied in this research is the MDLC method.. Each stage was carried out systematically to produce an interactive and high-quality learning media. The learning media application was developed using LUMI H5P, which provides various interactive features such as text, images, videos, and interactive exercises in the form of single choice sets and drag-and-drop activities. The results of the study show that the implementation of Lumi H5P-based learning media can increase students’ learning interest and facilitate their understanding of the material. Moreover, the simple interface design and user-friendly features make this application effective for both classroom learning and independent study. Therefore, the implementation of Lumi H5P in mathematics learning The media can act as an innovative solution to promote a learning process that is more engaging and effective.

The development of information technology has brought significant changes in various sectors, especially in the banking sector. However, the financing application service at the Muamalat Bank Situbondo Branch still uses manual methods that are inefficient and risky. This study aims to design a web-based financing application information system using the Prototype method, which can produce an information system design with a simple, user-friendly, and easy-to-operate interface, so that customers and bank officers can quickly understand the flow of use. In this study, the method used is a qualitative descriptive method with a case study approach. Data collection techniques include interviews with agency supervisors, direct observation in the field, and documentation. The results obtained from this study are an information system design that includes process modeling (UML), database modeling (Class Diagram), and user interface design. This system is designed to allow customers to apply for financing online, upload digital documents, and monitor the application status in real time. With this system, it is expected that the process of data verification and validation by bank employees will be faster and more accurate, and the risk of document loss can be minimized.

The development of information technology has accelerated digitization in various sectors, including in the decision-making process. In the DayTrans Shuttle service, the selection of the best route is still done manually using Microsoft Excel. This process is time-consuming, inefficient, and has the potential to cause errors and subjectivity. The purpose of this study is to design and develop a web-based decision support system by applying the Weighted Product (WP) method to determine the most optimal shuttle route objectively and efficiently. The research data was obtained through interviews, observations, and literature studies, then analyzed according to system requirements. The development was carried out through the stages of requirements analysis, database and interface design, implementation, and testing. The developed system is equipped with features for managing criteria data, alternative routes, weight calculations, and real-time presentation of recommendation results. The research results show that the system functions well, is able to speed up the route selection process, and produces accurate and transparent recommendations. Thus, this system is expected to improve DayTrans' operational efficiency while supporting the quality of inter-city transportation services.

Nava Rent Car is a car rental service business located in Batam. Many customers have complained about the difficulty in making reservations and obtaining detailed information about the vehicles and services offered. To address this issue, the author designed a more informative, functional, and appealing User Interface (UI) website to support the marketing of services. This design was developed using the Design Thinking method with SWOT analysis techniques. This approach was chosen because it focuses on the user, helping to deeply understand their needs, desires, and problems. The Design Thinking process consists of five steps: empathizing to understand the user's problems, defining the problem, ideating solutions, prototyping, and testing the design for user feedback. The result is a high-fidelity website prototype that illustrates the user flow and measures how well the design meets user needs and provides an optimal experience. Feasibility testing showed positive responses, especially regarding the interface design, clarity of vehicle information, and available features. It is expected that this design will help Nava Rent Car enhance its marketing strategy and expand its business reach.

The rapid development of information technology has encouraged government institutions to transform the way they manage data and deliver public services. The Protocol and Leadership Communication Division (Prokopim) of Situbondo Regency plays a strategic role in managing the schedules of regional leaders and documenting each official activity as a form of accountability. Currently, these processes are still managed manually, which causes obstacles in recording, searching, and reporting data. Such limitations reduce efficiency and transparency, indicating the urgency of a structured, accessible, and integrated web-based information system. This research aims to design a web-based system that integrates employee data, leadership agendas, and documentation records into a single platform. The research method combines field observations, interviews with Prokopim staff, and literature studies to analyze user requirements. The system design adopts the Waterfall model, which includes requirement analysis, database design, user interface design, and system modeling using Unified Modeling Language (UML) diagrams such as use case, activity, and sequence diagrams. Database structures are represented through class diagrams, while user interface designs are developed using prototyping. The findings of this study produce a system blueprint that provides a structured framework for digitalizing agenda and documentation processes. The proposed design improves accessibility, accuracy, and efficiency in managing leadership activities. Furthermore, this system can be considered as a practical model for applying digital transformation in government institutions, supporting better accountability and service quality in the public sector.

The Student Evaluation of Lecturers (EDOM) at the Faculty of Engineering, Universitas Dr. Soetomo has historically been conducted via Google Forms and processed manually, resulting in slow response times, repetitive recap procedures, and insufficiently documented reporting validity. This study aims to design, build, and evaluate a web-based EDOM system using the Prototype Model (MODEL PROTOTYPE) to improve data collection efficiency, recap accuracy, and the effectiveness of feedback for teaching quality assurance. The development method comprises requirements elicitation with the Quality Assurance Unit through a review of SPMI documents and brief interviews, architectural and interface design (Laravel, MVC pattern, and MySQL), staged prototyping, and rapid iterations based on stakeholder feedback until functional conformity is achieved. The resulting system provides authentication and role-based authorization (Admin, GPM, Lecturer, Student), odd/even period management, a question bank employing a Likert scale, anonymous questionnaire submission, score recap per lecturer and per category (pedagogical, professional, personal, social), dashboard visualizations, and report export to support governance needs. Functional evaluation was conducted through black-box testing on core scenarios (login, period scheduling, submission, recap, and export) and indicated conformance to specifications. User acceptance evaluation employed the Technology Acceptance Model (TAM) to examine perceived usefulness, perceived ease of use, attitude toward use, and behavioral intention; the results indicate positive acceptance and potential for operational adoption. Practically, the prototype approach accelerates requirement alignment, reduces the risk of mis-specification, and facilitates change control, while the Laravel-based implementation supports maintainability, role-based access security, and further feature development. The study is limited to a single faculty; future work may include SSO integration, audit trails, and longitudinal, cross-semester analytics for more comprehensive monitoring of lecturer performance.

E-learning has become a vital pillar in higher education, especially since the COVID-19 pandemic forced a sudden shift towards digital learning methods. This article examines the effectiveness of e-learning platforms through a comparative literature review (2020–2025), focusing on Moodle, Google Classroom, Microsoft Teams, Zoom, and CIDOS 4.0 as the local platform. The study evaluates aspects of student engagement, accessibility, assessment, and technological innovation. Findings reveal that although e-learning enhances flexibility, challenges remain in terms of the digital divide, system usability, and reliability of assessment. This review highlights that Moodle provides strong interactive and assessment features, while Google Classroom offers simplicity and accessibility but lacks advanced analytics. Microsoft Teams supports collaboration and integration with Office 365, yet requires stable internet. Zoom is highly effective for synchronous interaction but less suitable for task management. CIDOS 4.0 addresses Malaysia’s TVET context but continues to face issues with server stability and user interface design. Beyond platform-specific strengths and weaknesses, the analysis emphasizes that student engagement, fair access, and reliable evaluation methods are central to e-learning effectiveness. Hybrid approaches that combine face-to-face and online learning are identified as the most effective strategy within the Malaysian higher education context. The study concludes that institutions must not only choose appropriate platforms but also enhance digital literacy, invest in infrastructure, and explore innovations such as AI and gamification. These measures can maximize e-learning’s potential to improve teaching, learning quality, and the broader digital transformation of higher education.

In the automotive manufacturing industry, efficiency in quality control is a crucial factor to ensure consistent product quality. Conventional Quality Assurance (QA) processes using manual record-keeping often face challenges such as delayed reporting, human errors, and difficulty in tracking historical data. This study aims to design and implement a QA performance dashboard based on digital forms at PT Dharma Polimetal, Tbk, to enhance efficiency in production quality control. The research methodology includes direct field observation, collection of production and QA data, mapping of QA process flows, interactive dashboard interface design, and system trial implementation. The designed dashboard focuses on four main aspects: QA Incoming, QC Line, QC Gate, and Customer Handling, each containing measurable performance indicators and quality parameters. Initial implementation results indicate significant improvements in QA process monitoring, faster reporting of inspection results, and easier real-time data access for both production teams and management. The system enables early detection of potential quality issues, supports rapid decision-making, and facilitates internal and external audits. Moreover, the use of digital forms within the dashboard enhances data accuracy, minimizes human error, and creates structured historical records for long-term analysis. This study provides a tangible contribution to the digitalization of QA systems, strengthening sustainable quality control practices in the automotive industry, thereby ensuring consistent productivity and product quality.

The development of digital technology encourages MSME players to utilize digital platforms as a medium of information and communication with customers. Widasari Bakery is a bakery established since 1999 in Sidoarjo, has not maximized digital platforms such as websites as information media. This study aims to design the interface design of the Widasari Bakery website as a medium of information and communication to customers. The research method used uses qualitative and quantitative methods involving surveys, interviews, questionnaires, and literature studies, and uses the fishbone diagram method and SWOT analysis to identify problems and look for development potential. The results of this design are expected to increase brand identity and market reach and strengthen the growth of the Widasari Bakery brand in the digital era.

The on-demand economy has transformed consumer expectations, demanding fast, transparent, and efficient services. However, the MSME printing sector in Indonesia is often still hampered by manual processes that cannot meet these demands. This research aims to design and validate an on-demand printing service platform interface that acts as a digital bridge between customer demand and MSME production capacity. Using a User-Centered Design (UCD) methodology, a high-fidelity interactive prototype was designed and validated through usability testing with 20 respondents. The test results demonstrated excellent usability, with an average task completion rate of 93%, an overall relative efficiency of 91.4%, and a user satisfaction score of 88%. These results validate that the platform design focusing on instant ordering flows, real-time price calculation, and a job management dashboard for service providers successfully creates an effective and satisfying user experience. The implication of this research is a validated platform model that can serve as a catalyst for printing MSMEs to adapt to the on-demand economy, increase their competitiveness, and participate in the broader digital ecosystem.

Digital applications in the cultural tourism sector require effective interface design to improve user convenience and satisfaction. This study focuses on developing a user interface (UI) design that is intuitive and easily accessible to domestic and international tourists. Through user-based research methods and prototype testing, this study formulates design elements that can facilitate navigation and access to cultural information. The findings show that user-friendly UI design can improve user interest and experience in exploring Indonesian cultural heritage.

This study aims to analyze the influence of User Experience and Word of Mouth on Customer Satisfaction in the Oxygen.id Home service, one of the internet providers in Indonesia. In today’s digital era, the quality of internet service is measured not only by connection speed and stability but also by the user’s experience when interacting with the service. User Experience encompasses aspects such as ease of use, interface design, responsiveness, and emotional comfort during service usage. A well-designed User Experience can enhance positive perceptions of the service and lead to increased Customer Satisfaction. Customer Satisfaction plays a crucial role as a bridge between User Experience and Word of Mouth. Satisfied customers tend to be more willing to recommend the service to others, either directly or through social media. Word of Mouth serves as a trusted form of organic promotion and has a significant impact on attracting potential new customers. Therefore, Word of Mouth is not only an outcome of good service but also a part of an effective growth strategy in a competitive industry. This study employs a quantitative approach by collecting data through surveys of active Oxygen.id Home users. The analysis results indicate a strong relationship between User Experience, Customer Satisfaction, and Word of Mouth, with Customer Satisfaction acting as a significant mediating variable. These findings emphasize the importance for service providers to continuously optimize User Experience in order to increase customer loyalty and expand market reach through the power of Word of Mouth.

The rapid growth of the fashion industry in Indonesia, particularly in Bandung, has increased the demand for structured and efficient sewing course management. Bandung Vision Center, as one of the institutions providing sewing training, faces significant administrative challenges due to the continued use of manual registration and attendance monitoring systems. These conventional processes result in data inaccuracies, slow information retrieval, limited transparency, and difficulties in monitoring participant progress across multiple training waves. This study aims to design and develop a web-based application to optimize participant registration and attendance monitoring processes at Bandung Vision Center. The research adopts an Agile software development methodology to ensure iterative development, flexibility, and responsiveness to user requirements. The system is implemented using the Laravel framework for backend development, ReactJS for frontend interface design, and MySQL as the relational database management system. System modelling is conducted using UML diagrams, and functionality testing is performed using the black-box testing method. The results indicate that the developed application significantly improves administrative efficiency, enhances data accuracy, and enables real-time monitoring of participant attendance. Additionally, the system increases transparency, facilitates structured data management, and supports better decision-making for course administrators. The implementation of this web-based application demonstrates its effectiveness in modernizing administrative processes and strengthening institutional competitiveness in the local fashion education sector. Future enhancements may include integration of online payment features, automated notifications, and advanced data analytics to further improve service quality and user satisfaction.

This research explores the process of designing a user interface for the SDIT Attaqwa Ambulu website, aimed at serving as a centralized digital information platform. It addresses the school’s communica-tion challenges, which still rely on traditional media like brochures and inconsistent social media management. A qualitative descriptive method was employed, using interviews, observations, and ques-tionnaires for data collection. The findings indicate a strong demand from parents and the local community for a digital platform that de-livers clear, organized, and visually appealing content. The design development process included audience identification, needs analy-sis, formulation of visual and verbal concepts, creation of wireframes, user flow mapping, and high-fidelity design work. Vali-dation involved guidance from academic advisors, feedback from stakeholders, and critique from a UI/UX practitioner—focusing on layout consistency, color readability, and the use of functional ele-ments such as buttons and cards. The final output is a user-friendly website design that combines a modern aesthetic with Islamic visual identity, aiming to enhance the school’s branding and improve pub-lic access to essential information.

The rapid development of information technology has provided great opportunities for the service sector to improve efficiency and convenience, including in vehicle washing services. This research aims to develop a web-based system using the Laravel framework, which is designed to simplify the online ordering process and overcome queuing problems. The system features user authentication, location-based booking, payment gateway integration for real-time transactions, and an interactive dashboard for service providers. The case study was conducted at Carenmore, a vehicle wash service in Krian. The implementation results show that the system is able to reduce customer waiting time, provide a better user experience, and improve service efficiency. Further development is recommended to add a variety of features, improve interface design, and increase the system's ability to handle larger user loads.