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The management of service centers at the Indonesian Rede Cross (PMI) in East Jakarta is still conducted manually, which slows down service processes and increases the likelihood of data processing erorrs. This research aims to design a Java-based application to automate patient registration, admission, handling, emergency services, available ambulance data, and the preparation of reports as quickly as possible. The application was developed using the Java programming language with a prototype model approach in software development. Testing results indicate that this application successfully enhances the efficiency and accuracy of PMI East Jakarta’s operations, particularly in managing data related to patients, actions, personnel, and ambulance availability. It is hoped that this application can be integrated with other PMI regions to establish a more structured and connected service management system.

Construction management is vital for coordinating and overseeing projects to ensure alignment with planned objectives. Factors such as time, cost, and quality demand strict control, as discrepancies between initial plans and actual execution can cause significant challenges. In ship construction, delays in material execution and delivery are frequent bottlenecks, leading to schedule disruptions and negatively affecting project outcomes. Addressing these issues requires effective management and robust risk mitigation strategies. This study proposes a web-based ship construction project monitoring system using the Laravel framework and MySQL database. The system is developed using Extreme Programming (XP), an agile methodology that emphasizes iterative improvement, stakeholder collaboration, and adaptability. XP practices, including test-driven development, pair programming, and continuous integration, ensure the system is reliable, adaptive, and responsive to evolving user needs. Frequent stakeholder feedback and incremental development cycles enable the system to tackle dynamic challenges, optimize resource utilization, and ensure timely project delivery. By incorporating XP principles, this study demonstrates the potential of agile methodologies to enhance construction project management. The resulting system provides a flexible and efficient solution for mitigating delays and improving the overall success of ship construction projects.

This study investigates the ethical considerations in cross-cultural communication within student exchange programs, focusing on the application of Neuro-Linguistic Programming (NLP) techniques such as mirroring, rapport building, reframing, and anchoring. These methods were analyzed for their effectiveness in enhancing understanding and reducing miscommunication among students from diverse cultural backgrounds. Data was collected using interviews and questionnaires, revealing that NLP strategies facilitated better adaptation, trust, and collaboration. The Findings highlight that students' responses predominantly fell into positive categories, with Strongly Agree (20.67%) and Agree (79.33%), showing a high level of alignment with the statements presented in the questionnaire. Notably, there were no Neutral (0%), Disagree (0%), or Strongly Disagree (0%) responses recorded, indicating unanimous agreement with the ideas conveyed. These results suggest a strong consensus among students, reflecting their shared perspectives and high levels of agreement on the topics discussed. Importance of ethical communication strategies in fostering meaningful intercultural interactions and mutual respect among participants in a multicultural setting.

Mastering technology is essential in the digital age, particularly for building programming skills. However, a lack of access to good learning materials and adaptable learning systems remains a major challenge. This research intends to create a digital-based coding course platform that effectively and efficiently supports technical learning. To provide the best learning experience, the platform includes different features such as organized learning materials, hands-on exercises, and automated evaluations. The development methods used include analyzing user needs and implementing modern web technologies. Testing results indicate that the platform can enhance users' grasp of coding concepts and encourage them to keep learning. The platform is anticipated to offer innovative solutions for technology education for various groups, from students to professionals.

The aim of this research is to design and build an online marriage registration service information system at the KUA Tinggi Raja District using the CodeIgniter framework which can support or facilitate marriage registration at the KUA Tinggi Raja District. The research method used in this research is a qualitative method with the waterfall system development method. The applications created are designed using Unified Modeling Language (UML) including Use Case Diagrams, Activity Diagrams, Sequence Diagrams, and Class Diagrams. The software used in designing this application uses the PHP programming language, XAMPP as the web server, MySQL as the database. The result of this search is an application for the Tinggi Raja Regency KUA Online Marriage Registration Service so that this application can support the Telluwanua Regency KUA Online Marriage Registration Service. The application was tested using the black box test method and results were obtained without program errors, while for questionnaire testing using usability the results were very in line with the score, namely utilization of 96%. Hopefully this application can help online marriage registration services at the KUA Tinggi Raja District. 

Information system is an important component of any institution, a proper information system could bring a lot of benefits. An example of this is the attendance system. Chinchin Production faced a difficult challenge of managing human resources because previously employees had to sign their attendance manually, which is proven to be inefficient. The solution to this challenge is a proper attendance system to replace the old manual attendance system. The development methodology used is Extreme Programming (XP). Extreme Programming (XP) is an Agile project management methodology that aims for speed and simplicity. The prototype is designed using Unified Modeling Language (UML) as a modelling tool to visualize the structure of the system, as well as Figma to design the User Interface (UI) of the system. This attendance system helps Chinchin Production in managing human resources.

important for various groups of people, especially in supporting appropriate decision making through the use of information technology. In the business world, an efficient system can provide real-time information, thus simplifying operational processes. However, at Toko Tri Karya, the process of selling groceries is still done manually, starting from inputting sales data to making reports. This causes various obstacles, such as delays in data processing and the possibility of errors. Therefore, it is necessary to analyze and design a web-based sales information system that can improve efficiency and effectiveness in data management. This system will be designed using the PHP programming language, which will provide convenience for the admin in managing sales information. Hopefully, with the application of this computerized system, Toko Tri Karya can overcome existing problems and achieve more optimal results.

The programming language used in this web development is PHP using the Laravel framework and the RDBMS used is MySQL. The system development model used is the SDLC waterfall model so that the work is gradual and more structured. This research resulted in web-based drug management at the Jambi City Pharmaceutical Installation UPTD being able to solve the problem of recording incoming drugs from Pharmaceutical Wholesalers, Submission of LPLPO files by Puskesmas as official proof of drug needs at the Puskesmas, outgoing drugs during drug distribution activities to Puskesmas, data on Pharmaceutical Wholesalers who partner as drug suppliers at the Jambi City. Health Office Pharmaceutical Installation UPTD Warehouse, data on health centers in Jambi City along with officers who will come during distribution and drug data that will be returned to the Pharmaceutical Wholesaler responsible for the product.

Computerized accounting is a system used to process company transaction data by using computers as a technological medium for application work processes and to produce financial reports for a company. The use and application of computer technology in office activities is a requirement and fairness that is needed, without having to eliminate manual systems. The use of computers will be able to improve employee performance in supporting activities in an agency or company. Financial management within the regional scope is the regional task and authority in organizing regional agencies which includes several sections including budgeting, income, expenditure, and accounting and accountability. The aim of this research is to design a web-based computerized accounting system for regional income and expenditure in Wates Village. And create a computerized accounting system that can assist the process of recording and storing web-based regional income and regional expenditure transaction data which produces regional income and expenditure report information. In creating a computerized system for regional income and expenditure, the software used is Sublime Texet3. Data storage uses MySQL and programming languages ​​use PHP and HTML. The research results show that the computerized accounting system makes it easier for finance employees to record financial transactions. Then financial reports are produced more quickly and data errors can be minimized and more structured data is stored in the database. So this new system really helps agencies in Wates Ngaliyan Village, Semarang, where the application is equipped with a menu for input, processes and reports that process transactions, both income and expenditure.

A geographic information system are highly valuable tools that help individuals or visitors explore noteworthy destinations. Implementing GIS for online restaurant searches within Southwest Sumba Regency aims to assist users in effortlessly obtaining detailed and accurate information about restaurant locations, enabling them to identify and reach these spots efficiently. The purpose of this project is to design a GIS application that leverages the capabilities of the Google Maps API. This API represents a sophisticated set of modern programming tools that facilitate seamless interaction between different software systems. The GIS application is developed using the waterfall methodology, which emphasizes a structured software development lifecycle to ensure uniformity and operational clarity. Therefore, the results of this study, with a geographic information system mapping the location of eating restaurants can provide information to tourists, as well as the community regarding the location of eating restaurants in the Southwest Sumba Regency area quickly and easily. 

The library is a place to get information through books that have been provided by the Southwest Sumba Regency Library and Archives Office. The problem faced by researchers is when books have not been neatly arranged on the shelves and many books have not been archived in an application so researchers design an application to assist in making a computer-based system. The library information system application is designed with the PHP programming language and MySql as a database. From the results of this study, the library information system can be used as expected and can help officers manage book data and borrower data easily.

The increasing demand for skilled human resources in the field of automation by the workforce has encouraged vocational education institutions to align their graduates' competencies with industry needs. Students must be equipped with up-to-date skills in line with technological advancements. Currently, the availability of technical expertise programs in vocational high schools (SMK) that include industrial automation curricula is very limited. This situation does not align with the growing industrial demand for SMK graduates with automation competencies, such as wiring and PLC programming skills. Based on these circumstances, this automation system training based on PLC was conducted as part of a community service program. The activity aimed to enhance the skillsets of vocational high school students, particularly in the machining engineering department. The training utilized PLC-based automation systems with Omron CP1E E30-DR-A controllers. The PLC logic programming was performed using CX-Programmer software. The results of the program showed that most participants could grasp the material well. Moreover, all participants gained new insights and skills in industrial automation systems, which serve as valuable support when entering the workforce.

This research aims to design an information system for scheduling incoming and outgoing letters at the Asahan District Education Office. Currently, the process of managing letters is still done manually by writing them into a ledger which is inefficient in terms of time and energy. This research uses qualitative methods with data collection techniques through observation, interviews and literature study. The system was designed using the PHP programming language and Unified Modeling Language (UML) for system modeling. The research results show that the designed information system can provide a solution to the problem of managing letters manually by making the data management process easier and faster. This system includes incoming and outgoing mail management features, user management, and report generation, which can improve employee performance in mail administration tasks.

The manual registration information system for incoming students is still commonly used by certain universities and colleges in Indonesia. However, the challenge lies in the fact that many potential students, especially those living outside urban areas, face difficulties with manual procedures and indeed many colleges still need a more efficient and effective information system to facilitate ownership of exam participant cards. The purpose of this study is to design a new student admissions website using PHP and MySQL to facilitate online registrants in ownership of exam participant cards. The methodology used in this study involves a system development research procedure, specifically focusing on creating a web-based system for new student admissions information that can be accessed via a web browser. The system for new student admissions information was developed using the PHP programming language and utilizing the MySQL database as a database server. The results of the design of this new student admissions website show that the newly implemented web-based student admissions system is able to offer convenience to prospective students in accessing broad information about the admissions process, as well as completing registration procedures, making online payments, and issuing exam participant cards. Hopefully this system will continue to be developed and can be applied in every college.

Family well-being is very important for the lives of individuals and communities. A happy and The problem with learning German grammar at the A2 level is that many students still struggle to understand sentence structure, especially when using the perfect tense, subordinate clauses with "weil," and the genitive case. Students often find it challenging to remember grammar rules and how to apply them in sentences. The aim of this study is to develop interactive learning media in the form of Kodular-based applications to address these issues and support learning German grammar at the A2 level. The app is designed with relevant grammar materials and uses the 4D model development method (Define, Design, Develop, Disseminate), which reaches only the development stage without dissemination. The app was created on the visual platform Kodular, which enables users to develop Android apps without programming knowledge. The results show that the app is an effective learning medium, with a validation score of 90 (excellent) for the material content and 92.5 (excellent) for the media aspects. With a file size of 5.08 MB, this application enables users to learn German grammar independently anytime and anywhere.

The development of information technology has encouraged various educational institutions to switch from manual systems to more efficient and integrated digital systems. One important activity in school management is the process of scheduling teachers' lessons, which often takes a long time and has the potential to cause scheduling conflicts when done manually. Common problems that often arise include conflicts between teachers' teaching hours, incompatibility of classroom availability, and difficulties in adjusting schedules to teachers' preferences. Therefore, this study aims to design and develop a web-based teacher scheduling information system by applying the Greedy algorithm method as a solution to optimize automatic schedule compilation. This system was developed using the PHP programming language and MySQL database with a Waterfall development model approach. The implementation results show that the system is capable of producing teaching schedules quickly, accurately, and with minimal time conflicts. Thus, the application of the Greedy algorithm has proven to be effective in improving efficiency, accuracy, and flexibility in managing teacher schedules in a school environment.

This research uses a quantitative approach with the help of Python to solve infimum and supremum problems involving measurements, calculations and data analysis to draw conclusions. This research process consists of several stages: problem identification, modeling a set of numbers or functions, and implementing algorithms in Python to calculate the infimum and supremum. The calculation results are compared with manual analytical solutions to ensure accuracy and efficient use of Python. Sets as a basic concept in programming allow organizing data and logical operations more efficiently. These findings show that Python is not only effective in calculating supremum and infimum, but also speeds up the solution process compared to manual methods. The results of the program execution show that the analyzed set has an infimum fan supremum which is in accordance with the theory, where set 1 has an infimum of 2, set 2 has a supremum of 5, and set 3 has an infimum of 1 and a supremum of 4.

In order for life to exist on Earth, water is required and is particularly important on ships. Concerns about water scarcity arise because water resources cannot always meet demand. pH has an impact on the quality of drinking water, with an ideal range between 6.5-8.5. Alkaline water with a pH of 8.8 has health benefits, including helping to lower stomach acid and improve body oxygenation. The pH of drinking water recommended by the EPA is between 6.5-8.5 to ensure safe consumption. pH is a measure of the acidity or basicity of water, on a scale of 0-14, where 7 is considered neutral. The research plans to make a drinking water pH control system using an ESP 32 microcontroller. This research aims to control also monitor the pH of drinking water efficiently using ESP 32 microcontroller. This research uses the Research and Development (R&D) method to design pH control in drinking water solutions. The phases of the research include using a pH sensor to detect pH values, using an ESP 32 microcontroller to control pH, and validating and improving the product model. Overall system testing in the design of a drinking water pH controller system from water treatment is an important stage to ensure successful integration between all components and desired functionality. This testing process includes several main stages, Hardware Integration Testing: All hardware is physically connected and integrated, including ESP32, relays, solenoid valves, and pH sensors. This test is taken to ensure that all components are properly installed and interact with each other correctly. Software Integration Testing: This type of testing verifies that all features and functions of the system function as intended by the software program responsible for it. This includes testing Wi-Fi connections, integration with the Blynk platform, and programming logic as an automatic water controller. Testing System Functionality: to ensure that the intended features can be run properly, the system is tested in various usage scenarios. This includes testing the water controller automatically. the designed system can function normally and adjust appropriately to the designed controller system. From the data obtained regarding the performance results of the system built, it was found that the pH controller system can be run automatically based on the water that has been set as the set point of the system created. The monitoring system with IoT is also able to run well. The time needed will be more to control the pH in the range of 6.5-8.5.

Mathematics is a science that is structured deductively and systematically. Proof in Mathematics is important because it can enable critical thinking logically, and the truth of a hypothesis can be tested.  Mathematical induction is a proof method that has 2 steps, namely basis and induction. With advances in technology today, there are many applications that can make this proof easier, such as Python. This research uses quantitative and qualitative approaches to prove the effectiveness of using Python compared to manual proof. The results show that Python not only speeds up work but also minimizes errors that could occur if done manually. With this research we recommend further exploitation of mathematical induction in other programming applications.

One of the main challenges encountered is the suboptimal project progress tracking system, and the frequent delays in progress reporting that hinder management in monitoring project development. Therefore, the author will write a thesis discussing the creation of a web-based project management application using the PHP programming language and the Laravel framework. The development process of this software will use the waterfall method. This application is expected to facilitate PT. Aurora Arta Indonesia in conducting its business processes. With features for progress tracking, billing recording, and progress reporting to clients, it will help achieve project goals quickly and effectively.