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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.

The rapid advancement of technology has transformed many aspects of life, including education. Information and Communication Technology (ICT) plays a crucial role in enhancing the quality of learning. One promising technology is Augmented Reality (AR), which offers interactive elements to clarify complex concepts. Based on conversations with a history teacher at SMK Media Informatika, the teaching methods currently used tend to be traditional. Therefore, an AR-based history learning application focusing on the Ancient Mataram Kingdom in Indonesia was developed using the ADDIE Method. This application was created using Unity 3D and the C# programming language. It serves as an interesting addition for students, aiming to increase their interest in learning. The hope is that this research will significantly contribute to the history learning process, providing innovative, effective, and enjoyable media.  

This research aims to design and build a web-based broadcast equipment inventory information system at TVRI North Sumatra. This information system was developed to overcome existing inventory management problems, such as tracking, managing and maintaining broadcast equipment. The development method used includes requirements stages, system design analysis, implementation, and testing using the black box method. This system was built using PHP as the programming language, MySQL as the database, and CSS and JavaScript for the user interface. Test results show that this system can manage equipment inventory effectively, including the functions of borrowing, returning and maintaining equipment. This system also allows integration with other existing systems at TVRI and provides long-term benefits such as increasing data accuracy and operational efficiency. The implementation of this information system is expected to support smooth operations and improve the quality of inventory management at TVRI North Sumatra.  

The Community Service Program (PkM) titled "Design of the Multi-Purpose Building at Pimpinan Cabang Muhammadiyah (PCM) Sawit Boyolali" was initiated to address the need for infrastructure in the form of a multi-purpose building. The scope of the activity includes the planning and design of the building so that it can adequately accommodate various activities according to the required capacity and comfort, while also meeting technical building standards. The method used consists of four main stages. First, gathering data on the site, user needs, and the necessary building technical standards. Second, conducting an analysis of space planning and programming. Third, formulating the design concept. Fourth, developing the design into technical drawings or Detailed Engineering Drawings (DED) and preparing a cost estimate (RAB). The final goal of this PkM is to produce a Design Document for the Multi-Purpose Building for PCM Sawit Boyolali.

The use of Information and Communication Technology (ICT) can be applied to various aspects to facilitate human work which was originally done manually to become a computerized system. One example is in the field of administrative services in various agencies, schools are one example of agencies that still use manual administration systems. Currently schools record and manage. Payment and expenditure data are processed through computers, however basic data management tools like Microsoft Office Excel are still used and not fully integrated. problems are frequently faced, such as data inaccuracies, errors in capturing data, challenges in finding data owing to time constraints, and loss or damage to data resulting from storage, so making the process less effective and efficient.The software used to build this system is a MySQL database, PHP programming language, HTTP Server namely AppServ Version 2.5.5, Web Browser namely Internet Explorer and Macromedia Dreamweawer editor. This system will produce information in the form of Web-Based Vocational High School Financial Administration Using the Laravel Framework

Archiving is nothing new for agencies. The movement of documents and other documents in and out of government agencies certainly requires filing. The storage carried out at the Samarinda City Regional Civil Service Agency Office has not been fully effective for the existing archives, because some of the archives carried out are still done manually. As a result, archives can easily be lost before archiving or data management is done, often requiring manual intervention. Storage usage causes errors in storing data and retrieving data. This website-based archive system is indispensable, this is because it can be used to make changes to data, such as reducing the amount of paper used and changing the way data is stored (going paperless). This archive website system was created using the Vscode application. Where the Programming Language used is PHP and SQL, with Xampp used for web server operations and SQL for database management, by sending letters paperlessly will minimize errors that have occurred so far. While the software development method or system design uses the Waterfall method. Waterfall methodology is a type of application development model that is integrated into the classic life cycle. The purpose of making this website is to create a website system that processes email archive data in an easy-to-use way.

Every company is required to plan the need for goods as effectively as possible in order to maximize profits. Bintang Makmur Building Shop is a building shop that provides building materials, especially cement. Cement is one of the basic materials for buildings. The need for cement has recently continued to increase due to the large number of developments, both housing projects and road construction. In addition to the increasing demand for cement, cement prices also experienced price volatility which tended to fluctuate. This is done so that there is no stockpiling or even a shortage of cement. With prices that tend to go up and down if there is too much stock, it will cause losses if there is a price decrease. Vice versa if there is a shortage of cement stock, it can cause disappointment to customers. To deal with the above, it is necessary to build a prediction system that can predict cement needs in prosperous shops. The system that will be built uses an Artificial Neural Network (Artificial Neural Network) which is part of the science of artificial intelligence which has been widely used to solve various kinds of problems related to prediction or forecasting by utilizing the Backpropagation Method. The system is designed with the MATLAB programming application. From the results of the research that has been carried out, it was found that the total demand for Andalas cement for January of the following year is 0.2532 or 2532, thus the predicted total demand for Andalas cement is 2532 sacks.

This Article Review for aims to analyze the effectiveness of dynamic programming as a tool to improve robust queue management strategies in service systems. Dynamic programming is an optimization technique used to determine the optimal solution to problems that can be broken down into smaller problems. Explore how dynamic programming can be used to improve queue management strategies, including reducing wait times, improving resource allocation, and increasing system efficiency. The research is based on an analytical model that combines dynamic programming with row theory Immune-waiting, includes mathematical and experimental analysis to evaluate the effectiveness of these strategies in different applied contexts. The research aims to provide practical insights on how dynamic programming can be used to improve the performance of SOA systems and to provide recommendations for improving management strategies.

The presidential election simulation game using the Python programming language is designed to provide players with an interactive experience in protecting society through the leadership election process. In this game, players will choose between several presidential candidates represented by a specific character. Each nominee has a different platform and vision, and players must make smart decisions to meet the needs and expectations of society. Through a game mechanism that involves policy choices, campaigns, and community responses, players will experience the impact of political decisions on community conditions in a simulated manner. The player's score or achievement will be reflected in the level of public support obtained by the selected candidate. The ultimate goal is to provide players with an understanding of the complexities and responsibilities of choosing leaders who are able to protect society well.  

This research discusses the application of asset maintenance at PT Pelindo Terminal Petikemas. This research aims to determine the asset maintenance system at PT Pelindo Terminal Petikemas, as well as to create a web-based asset maintenance application program at PT Pelindo Terminal Petikemas. The theoretical framework of this research involves information system analysis, by examining the information needed by management, related functions, documents used, as well as document flowcharts. MySql is used as a database, with the PHP programming language. The research results show that the recording process at PT Pelindo Terminal Petikemas has been computerized but still uses Microsoft Excel. The weakness of this method is that it is difficult to look back at archived data for the previous year because you need to search for the file first and there is a risk of losing the file. Therefore, the application called AVATAR (Accounting Virtual Report) in this research is expected to help produce asset maintenance reports more effectively and efficiently, thus providing benefits for the company.

This research discusses the application of cash receipts and cash payments from cash sales and cash purchases at CV Banua Prima Teknik. This research aims to determine the accounting system for cash receipts and cash disbursements at CV Banua Prima Teknik, as well as to create a web-based cash receipt and disbursement application at CV Banua Prima Teknik. The theoretical framework of this research involves information system analysis, by examining the information needed by management, related functions, documents used, and document flowcharts. MySql is used as a database, with the PHP programming language. The research results show that the recording at CV Banua Prima Teknik has been computerized but still uses Microsoft Excel. The weakness of this method is that it is difficult to find out the recapitulation report of cash receipts and disbursements based on a certain period. Therefore, the application developed in this research is expected to help produce cash receipt and disbursement reports more effectively and efficiently, thereby improving performance in company financial management.

This study aims to explore the foundation of code in the C++ programming language with a focus on data structures. Data structures are a fundamental component in efficient and effective software development. This literature review explores various types of data structures implemented in C++, including arrays, linked lists, stacks, queues, hash tables, and trees. An analysis is conducted on the basic principles and implementation of these data structures in the context of C++, taking into account the strengths and weaknesses of each structure. In addition, this study also discusses the evolution and comparison of data structure implementations from the perspective of performance and algorithm complexity. The results of this study provide in-depth insights into how data structures can affect the design and efficiency of C++ applications, as well as provide guidance for software developers in choosing the most appropriate data structures for their specific needs. The conclusions of this study highlight the importance of a deep understanding of data structures in software development and their contribution to the success of software projects.

Unloading equipment is equipment used to assist the process of loading or unloading cargo, such as cargo or bulk cargo from transportation facilities. One example is a conveyor, a mechanical system that can move goods. However, damage often occurs to the conveyor, so an Arduino Mega-based safety device was designed to fulfill the safety aspect. The aim of this research is to find out how to design an Arduino Mega-based safety device system for conveyor unloading equipment using the Research and Development (R&D) method. Using 2 types of testing, namely: static and dynamic testing. Arduino MEGA works fine. If the motor rotates and the conveyor moves, the conveyor is said to be working properly. The safety device on the Arduino Mega-based conveyor was made using Arduino IDE software using the C++ programming language. This safety device is able to secure the conveyor when damage occurs by cutting off the electricity when there is an overload on one of the conveyors so that the entire conveyor stops working. The conveyor series consists of a power supply, box panel, and three conveyors. After the tool has been tested and can work well, the testing is complete and the tool is ready to be used.