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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.

Examinations in radiology installations have increased annually, resulting in a higher risk of radiation hazards to staff, particularly in interventional, conventional X-ray, and CT-Scan environments. Furthermore, not all hospitals are equipped with radiation survey meter monitoring devices. Therefore, an innovative radiation exposure monitoring system based on the Internet of Things (IoT) was developed. This study aims to: (1) develop an IoT-based radiation exposure monitoring system, (2) evaluate the device’s performance, and (3) assess the effectiveness of the system. The research method used was research and development (R&D), which included preliminary information gathering, product planning and development, expert validation, device performance testing, effectiveness testing, and final outcomes. This system was developed for real-time radiation dose monitoring.  The product development involved a Geiger-Muller M4011, an ESP32 microcontroller, and a Node-Red web application. Performance testing of the IoT-based radiation exposure monitoring device and a standard survey meter in CT-Scan and conventional X-ray rooms used the T-Test and Mann-Whitney tests. The results showed p-values > 0.05, indicating no significant difference between the two devices. Effectiveness testing through pre-test and post-test questionnaires demonstrated improved usability—namely flexibility, operability, learnability, and understandability—with an N-Gain value of 78.95%, indicating effectiveness. In conclusion, the IoT-based radiation exposure monitoring system proved effective and feasible for real-time radiation dose monitoring in radiology installations, offering advantages in IoT-based data integration, ease of access, and structured data recording. In addition to performance testing, the system was evaluated in terms of its integration with hospital infrastructure. It was designed to provide real-time radiation dose monitoring, automatically updating the dose data and sending alerts when safe exposure levels are exceeded. The system also enables remote monitoring, making it easier for radiology departments to oversee radiation safety without the need for direct physical checks.

This community service activity was carried out to increase the digital capacity and expand the market reach of the Peyek Bayam Yusr MSME located in Rajabasa Lama I Village, East Lampung, through the application of appropriate technology in the form of website creation and management training. In the rapidly developing digital era, the presence of online media is a key factor in supporting product marketing, but most MSMEs in this region do not yet have the skills or knowledge to utilize it optimally. This activity was designed in several stages: identifying needs, socialization, technical training, mentoring, and evaluation. The training included creating an account on a free platform, selecting a template, filling in product content, and managing supporting features such as photo galleries, contact information, and integration with social media. This approach was carried out directly by students so that MSME owners could follow each process. The results showed that after the training, all participants were able to create a simple website and began using it for promotions. Identified direct impacts included increased product visibility in online media, increased orders, and demand from outside areas that were previously difficult to reach. In addition, this activity also encouraged a shift in marketing patterns from conventional methods to technology-based strategies. The analysis of the results indicates consistency with various previous studies, such as Santoso (2020) and Ginting et al. (2021), which emphasize the importance of MSME digitalization to increase competitiveness. This process has had a significant positive impact on MSMEs. This program is recommended for other MSMEs, as it is hoped that this program will have a positive impact in line with market needs. This process is accompanied by direct mentoring so that the achieved results can be maintained and developed

The Department of Women's Empowerment and Child Protection (DP3A) of Nabire Regency is responsible for implementing government tasks related to women's empowerment and child protection. However, the existing complaint handling process is still manual, leading to inefficiencies. This research aims to develop a web-based public complaint system using the Agile method to improve service quality. The development process follows Agile principles, emphasizing iterative development and stakeholder collaboration. The resulting system allows the public to submit complaints online, track their status, and receive timely responses. The implementation of this system is expected to enhance transparency, accountability, and responsiveness in handling public complaints.

This study develops a web application to facilitate employees of the Regional Revenue Agency in Nabire Regency for taxpayer registration, payment reminders, and monitoring business tax arrears. The research uses a descriptive qualitative approach with data collected via observation, interviews, and documentation. The application development follows a systematic Waterfall model. Results show that the application improves data access, speeds communication between government and taxpayers, and aids real-time arrears monitoring, potentially enhancing business tax collection effectiveness.

The manual credit application process often takes a long time and is prone to various problems, such as recording errors, data redundancy, and the risk of losing important documents. These conditions not only hamper service effectiveness but can also reduce customer satisfaction and the performance of the officers involved. Therefore, this study aims to design and develop a Progressive Web App (PWA)-based credit application system using the Rapid Application Development (RAD) method. This system is expected to be a more efficient, faster, and more accurate solution than the current manual mechanism. PWA was selected based on its ability to provide universal access through a browser without the need for additional application installation, making it more practical for both customers and officers. Meanwhile, the RAD approach allows for an iterative and flexible system development process, with direct user involvement from the design stage through implementation. This aims to ensure the system is truly aligned with real-world needs. The development results indicate that the designed PWA system is capable of supporting the tasks of Account Officers (AO) and Division Heads in managing credit application data. The process includes the pipeline stage, submission, field survey, and credit realization, which is well-documented and accessible in real time. Functional testing using the Black Box Testing method proved that all features functioned according to established specifications. Furthermore, usability testing using the System Usability Scale (SUS) method yielded satisfactory scores, indicating the system's high usability and positive user experience. Therefore, this PWA-based credit application system not only improves process effectiveness and efficiency but also supports transparency, data accuracy, and user satisfaction.

In the current digital era, managing sales transactions manually is inefficient and prone to recording errors. This research aims to develop a web-based Point of Sale (POS) application for the Phi Phi Thai business using the Extreme Programming (XP) software development methodology. XP was chosen for its support of rapid iteration, adaptability to changing user requirements, and strong collaboration between developers and stakeholders. The developed application includes key features such as user registration and login, product ordering, menu and customer management, expense tracking, and financial and sales reporting. Testing was conducted using the Black Box Testing method to ensure that all functionalities performed according to specifications. The implementation results indicate that the application improves operational efficiency, reduces transaction errors, and provides real-time information for business owners to support better decision-making. Furthermore, the application of Extreme Programming (XP) methodology in the development process allows time for regular evaluation and refinement of the application based on feedback from end users. Each iteration produces a version of the software that can be immediately tested and used, minimizing the risk of system failure during final implementation. This approach also encourages lightweight yet relevant documentation and open communication between the technical team and business owners. Thus, the developed Point of Sale application not only meets current functional requirements but also has a high degree of flexibility for further development as Phi Phi Thai's business grows in the future.

Tax avoidance is a form of tax planning, which refers to the implementation of tax reduction strategies by companies through legal means due to imperfections in tax legislation. This study aims to obtain empirical evidence regarding the effect of transfer pricing and thin capitalization on tax avoidance with profitability as a moderating variable. The research was conducted on all companies listed on the Indonesia Stock Exchange (IDX) for the period 2020–2023. The sample was determined using a purposive sampling method, resulting in 127 companies, with a total of 508 observations across four (4) periods. Data collection was carried out using a non-participant observation method by accessing financial statements from the official website of the Indonesia Stock Exchange (IDX). Data were analyzed using Moderated Regression Analysis (MRA) with the SPSS application. The results show that profitability moderates by weakening the relationship between transfer pricing and tax avoidance. However, profitability does not moderate the effect of thin capitalization on tax avoidance.

PT. Sinarta Karya Papua, a medium-scale enterprise in Eastern Indonesia, faces operational challenges due to its reliance on manual sales recording systems, leading to data duplication, delayed reporting, and limited information transparency. This hinders operational efficiency and strategic decision-making. This study aims to develop a web-based sales management information system addressing these issues using the Rapid Application Development (RAD) methodology, selected for its rapid prototyping and iterative adaptation to user needs. Data was gathered through field observations, semi-structured interviews with staff and management, and literature reviews on information systems and RAD. The system was developed with PHP and MySQL to ensure flexibility and reliable data management. Findings demonstrate the successful integration of sales transaction processing, customer management, inventory control, and real-time reporting modules. Comprehensive functional testing (Blackbox Testing) confirmed 100% operational accuracy across all features, significantly improving record-keeping efficiency and information accessibility. The primary contribution lies in implementing RAD within Papua's unique business context—an underexplored area in existing literature. The system delivers a practical solution for PT. Sinarta Karya Papua while serving as a reference model for similar enterprises in geographically challenging regions. Key implications include enhanced organizational competitiveness through digital transformation and the potential replication of this framework across other business sectors in Eastern Indonesia.

The manual, paper-based election of the Student Council President faces various challenges, such as the lengthy vote counting process and the potential for errors in the recapitulation. To address these issues, this study designed a web-based e-voting information system at SMK Negeri 4 Tangerang Regency. This system was built using the Rapid Application Development (RAD) method, which emphasizes speed of development through iteration and prototyping based on user feedback. The development results indicate that e-voting can accelerate voting and vote counting, provide real-time results, and reduce paper usage. This system has been tested using blackbox testing, proving that all functions work as expected and are easily accessible to students. The study concludes that the implementation of web-based e-voting can improve efficiency, security, and transparency in the election of the Student Council President, with suggestions for system usage simulations and regular usability evaluations. Furthermore, this study also shows that the implementation of a web-based e-voting system can reduce the potential for fraud that often occurs in manual elections. With an automated and integrated system, every vote cast by voters is recorded accurately, reducing human error in the vote counting process. System security is also maintained through authentication mechanisms that ensure only authorized users can vote, as well as data encryption to protect sensitive information. This increases voter confidence in the election results, as the process is more transparent and free from manipulation. Furthermore, although the e-voting system has proven effective in increasing election efficiency and accuracy, the study also recommends the need for training for system users, both students and election committee members, to ensure they can utilize the system optimally. Continuous evaluation of the system's usability is also crucial to ensure that the interface remains user-friendly and easily accessible to all parties.

This community service activity was conducted as an effort to introduce integrated learning innovations based on Augmented Reality (AR) technology using the Assemblr Edu application to teachers at SMAN 1 Leuwiliang, Bogor, and several other schools in Bogor Regency. This activity was motivated by the underutilization of interactive digital technology in the learning process, particularly in helping teachers visualize abstract material. The implementation methods included preparation, webinar promotion, webinar implementation, a brief technical training session on creating learning materials using the Assemblr Edu application, and guidance in designing AR-based learning content during the webinar. Participants were asked to create AR-based teaching materials using Assemblr Edu according to the subjects they teach. In addition to providing theoretical material, the implementation team also conducted hands-on practice to ensure participants developed the skills to create AR content independently. The results of the activity showed high enthusiasm from the participating teachers, with 85% of participants stating that the training was very helpful and that they felt more confident in integrating AR technology into classroom learning. Participants were also able to produce several prototypes of Augmented Reality-based learning media that can be used as interactive teaching tools. This activity not only improved teachers' technological literacy but also broadened their understanding of how digital technologies such as AR can be creative solutions to enhance the quality of learning and student engagement. Through this community service activity, it is hoped that teachers will become agents of change in utilizing innovative technologies to create more engaging, interactive, and technology-driven learning experiences that align with the demands of 21st-century educational technology. Additionally, this program serves as a strategic step to strengthen teachers' capacity in addressing future challenges in digital learning.

Sultan Thaha Airport, Jambi, is one of the airports that has implemented a digital Airport PAS application process through a website-based system. This application information system is designed to improve efficiency and effectiveness in the PAS (Personal Airport Security) application process, which was previously done manually. With this system, it is expected that the entire administrative process can run faster, more transparently, and minimize errors. The purpose of this study is to analyze the implementation of the e-PAS information system, and to identify obstacles that arise in its implementation in the work environment of Sultan Thaha Airport, Jambi. The research method used is descriptive qualitative, with a blackbox testing approach to test the system's functionality. Data collection techniques were carried out through direct observation, interviews with 3 PAS applicants and 6 operational officers, and documentation related to system use. The data obtained were analyzed through the process of data reduction, data presentation, as well as drawing conclusions and verification. Data validity testing was carried out using the source and technique triangulation method. The results of the study indicate that the implementation of the e-PAS system has run quite well. However, several technical challenges remain, hindering the smooth running of the process, such as disruptions to the data input system, challenges with information validation, and suboptimal or incomplete system features. These findings provide important input for system developers to make continuous improvements to ensure more effective and efficient services in the future. Improved training for staff is also necessary to ensure optimal system utilization. Furthermore, regular evaluations of system performance are mandatory to maintain consistent service quality.

The purpose of this research, "Designing a Database System for Senior High Schools/Vocational Schools in Nabire Regency," is to build an information system that will make the process of data processing and management for schools in Nabire Regency easier. In this era of rapid technological advancement, effective and open information systems are becoming increasingly important, especially for educational purposes. It is hoped that the Ministry of National Education (Kemendiknas) will develop an information system with school profile data across Indonesia. This will assist data-driven decision-making for various parties, including the government and the education department. With this system, it is hoped that the administrative process will become more effective and transparent, and policy-making will become easier. In addition, this research emphasizes the importance of ensuring that all stakeholders can access data in order to improve the quality of education in the area. This study shows that the application created not only makes data management easier, but also enhances clarity and integrity in public education services. Therefore, it is hoped that this system will become a useful tool to promote education and assist in better decision-making processes in Nabire Regency. This research significantly contributes to the development of educational information systems in Indonesia, particularly in terms of school data management.

This research focuses on the optimization of BPBL data management processes through a custom application. The study identifies the challenges faced in manual data entry and verification, which can lead to inefficiencies and errors. The objective is to develop an application that allows for a one-click verification of application statuses, improving efficiency and accuracy. The findings suggest that such an application could significantly reduce processing time and enhance data integrity.

Electricity has emerged as an essential requirement in modern life. As demand escalates, electricity costs rise, making wastefulness a drain on financial resources. Consequently, forecasting electricity usage can enhance our management of consumption. This study presents an IoT-based monitoring and forecasting system for electricity consumption. The system comprises two NodeMCU micro-controllers, a PZEM-004T sensor for collecting real-time power data, and three relays that regulate the current flow to three distinct electrical appliances. The data gathered is transmitted to a web application utilizing the k-Nearest Neighbor (k-NN) algorithm to forecast future electricity usage based on historical patterns. We evaluated the system's performance using four weeks of electricity consumption data. The results indicated that predictions were most accurate when the user’s daily consumption pattern remained stable, achieving a Mean Absolute Error (MAE) of approximately 1 watt and a Mean Absolute Percentage Error (MAPE) ranging from 1% to 1.7%. Additionally, predictions were notably precise during the early morning hours (3:00 AM to 8:00 AM) when k=6 was employed. This study demonstrates the effectiveness of integrating IoT-based systems with machine learning for real-time energy monitoring and forecasting. Furthermore, it emphasizes the application of data mining techniques within embedded IoT environments, providing valuable insights into the implementation of lightweight machine learning for smart energy systems.

The development of digital technology has driven transformation across various sectors, including the food and beverage industry. Dessert businesses face challenges in improving operational efficiency and competitiveness in the digital market. One possible solution is the use of websites as marketing and sales platforms. However, without proper management methods, the utilization of this technology will not be optimal. Therefore, this study applies the POAC (Planning, Organizing, Actuating, Controlling) method to develop a website- based dessert sales system aimed at enhancing business efficiency and customer satisfaction. This study employs a descriptive approach with the POAC method in website-based marketing strategies. The planningphase involves designing e-commerce features, such as product catalogs, an online ordering system, and digital payments. The organizing phase focuses on resource management and technology integration, while actuating includes implementing the system using MySQL, PHP, and CodeIgniter. The controlling phase is conducted through system testing using the Blackbox Testing method to evaluate application performance. The study results indicate that implementing the POAC method in a website- based system enhances the operational efficiency of dessert businesses. Transaction records become more accurate, customers can easily access product information, and the digital payment system improves transaction convenience. Furthermore, the website enables businesses to reach a broader market without geographical limitations. The implementation of the POAC method in website-based business management has proven to improve marketing and sales effectiveness. With a more structured system, businesses can better adapt to market changes and enhance customer interactions. This digital-based strategy also opens new opportunities for developing the culinary business in the modern era.

This study aims to analyze the implementation of the principle of public interest in the implementation of public services by the Population and Civil Registration Office (Disdukcapil) of Bekasi Regency, as well as to evaluate the extent to which the implementation of these principles contributes to efforts to realize people's welfare. The principle of public interest is one of the basic principles in the implementation of public services that emphasizes the fulfillment of basic rights of the community in a fair, fast, equitable, and accountable manner. This research uses a qualitative approach with a case study method, where data is collected through in-depth interviews, direct observations in the field, and documentation studies on various policies and service reports. The results of the study show that the Bekasi Regency Disdukcapil has adopted various innovations in services, such as online services, digital queue systems, the use of information technology-based applications, and increasing the transparency of service information through social media and official websites. These steps are taken to improve accessibility, efficiency, effectiveness, and community satisfaction as service recipients. However, the implementation of the principle of public interest still faces several obstacles, such as limited competent human resources (HR), uneven information technology infrastructure, and low digital literacy among certain communities, especially the elderly and people in suburban areas. This condition results in the suboptimal public service oriented to the public interest to the maximum. Therefore, continuous efforts are needed through increasing the capacity of the apparatus, the development of inclusive and adaptive public service technology, and massive education to the public to increase participation, understanding, and awareness of the available services. Thus, the public services that are carried out can really contribute to realizing the welfare of the people as a whole, equitable, and just.

The rapid growth of information technology has driven digital transformation in various sectors, including micro, small, and medium enterprises (MSMEs), the backbone of the Indonesian economy. In response to the challenges and opportunities of digitalization, the Surabaya City Government launched the Peken e-commerce platform on October 31, 2021. This platform aims to help MSMEs market their products online, expand market reach, and increase competitiveness. However, the use of digital systems also presents new challenges, particularly in terms of cybersecurity. Dependence on technology opens the door to various threats that can compromise data confidentiality, integrity, and availability. This study aims to analyze and evaluate information security risks on the Peken Surabaya website using a risk management approach based on the ISO/IEC 27005:2019 standard. The analysis method involves identifying information assets, recognizing potential threats, identifying vulnerabilities, and assessing risk levels based on the likelihood of occurrence and impact. To support the analysis, technical testing was also conducted using the Open Web Application Security Project Zed Attack Proxy (OWASP ZAP) tool. The research results indicate that most of the risks faced by Peken Surabaya are moderate to very high. These risks include Distributed Denial of Service (DDoS) attacks, user data leaks, and the lack of a two-factor authentication (2FA) system. Based on these findings, a risk management strategy was developed using the Risk Modification, Risk Sharing, Risk Retention, and Risk Avoidance approaches. Furthermore, this study recommends security controls based on ISO/IEC 27005 and OWASP Top 10 to enhance system protection. These findings emphasize the importance of implementing international standards-based risk management in maintaining the continuity and security of digital public services, particularly those supporting the MSME sector in the digital era.

Manual honorarium management for contract teachers in vocational schools often leads to inefficiencies, inaccuracies, and lack of transparency. This study aims to design and implement a web-based application for managing honorarium data for contract teachers at SMK Pelayaran Ampari Jayapura. The research employed the Waterfall model as the system development methodology, comprising requirement analysis, system design, implementation, and testing phases. Data were collected through interviews, observation, and literature review. The resulting application offers role-based access for school administrators, finance officers, and teachers, and features modules for attendance recording, automated honorarium calculation, digital payslip generation, and real-time reporting. System testing was conducted using Black Box Testing to validate system functionality and User Acceptance Testing (UAT) to assess user satisfaction. The results indicate that all ten system functions performed as expected, and 78.75% of users reported satisfaction with the system, with an average score of 4.1 out of 5. The implementation of this web-based system significantly improves administrative efficiency, payroll accuracy, and information transparency for stakeholders. The study contributes a holistic, user-centered solution that aligns with the goals of digital transformation in education and can serve as a model for similar implementations in other institutions.

Village websites currently generally only provide information in the form of an interface for users, such as village profiles, potential areas, population data, and current news. However, the majority are not yet equipped with Application Programming Interface (API) support that allows for flexible and automated data integration and exchange. This is a challenge when dynamic access is needed by third-party systems, such as public service platforms, mobile applications, or local government information systems, which require real-time and accurate synchronization of population data. The project aims to implement a RESTful API that can be accessed securely, efficiently, and easily understood by developers to retrieve villagers' data. The development of the system is carried out using the Agile method, which supports rapid iteration and periodic evaluation to ensure that each feature functions optimally according to the needs of users and field conditions. This Agile method is applied in several sprints that include the stages of needs planning, designing the API endpoint structure, coding, documentation, and testing of the integration and security of the system as a whole. The results of the implementation show that the API successfully retrieves data directly from the village database, and presents it in a JSON format that is compatible for use by both frontend and third-party systems. This API supports pagination features for efficient access to large amounts of data, and is equipped with Basic Authentication to keep data access secure from being abused. With this API, the village website not only becomes a static information medium, but also transforms into a digital service platform that is open for cross-system integration. This supports the development of a more modern, efficient, sustainable, and collaborative village information system in the future, so that public services can be significantly improved.