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Optimizing the profit from coffee bean production is crucial in the coffee industry consider the competitive environment and the need for maximize revenue. The aim of this research is to use the Simplex linear programming method to determine and maximize profits from coffee bean production. This technique is used to ascertain the best combination of coffee bean production volumes while still considering a number of limitations, including scarce resources (labor, raw materials and machines) and market demand. The findings of this research show that by using the Simplex approach, companies can maximize the profit generated from coffee bean production while adhering to the existing constraints. The simulation conducted provides an optimal solution in terms of the precise production volume for each type of coffee product, contributing significantly to production planning and business strategy.

Fire is one of the incidents that disturbs homeowners because of the fire that will drain property and can claim lives when there is a lack of anticipation and minimal ignorance of the incident, such as when a fire occurs there is no early warning to the homeowner, this is also a cause of fire. The cause of the fire can be caused by a gas leak, electrical short circuit or caused by the community itself. Based on these problems, a solution is needed to create a safety system technology to be applied to the home kitchen, namely the design of an early detection system for fires based on the Internet Of Things (IoT) using ESP8266 which is useful for monitoring kitchen conditions and will automatically send a notification of the kitchen condition if the sensor reads an incident. The Hardware Design uses several tools consisting of ESP8266, Arduino R3. Jumper Cables, Fire Sensors, MQ-2 Gas Sensors, Mini Fans, Mini Water Pumps, Relays, Buzzers. and for the software design using Arduino IDE for system programming and Blynk as an application to display notifications. The designed system will be tested using black box testing which is used to determine whether the designed system will meet the specified parameters or not, and the results of the design state that the system is in accordance with the parameters used.

This research discusses the design of correspondence filing applications at the Subdivision of the Gerindra Faction of the North Sumatra Provincial DPRD. The letter filing system that is still done manually causes various obstacles such as difficulty in finding documents, the risk of damage and loss of physical documents, and inefficiency in archive management. The purpose of this research is to design a computer-based application to optimize the process of filing incoming letters and outgoing letters. The system development method used is waterfall with the stages of needs analysis, system design, implementation, and testing. The application is designed using PHP programming language and MySQL database to store mail data. The results showed that the designed application can facilitate the process of archiving, searching, and managing correspondence digitally and increase work efficiency in the Gerindra Faction Subdivision of the North Sumatra Provincial DPRD. This system is also equipped with a security feature in the form of a user login to maintain document confidentiality.

The Electronic Medical Record Information System (RME) is an information technology solution used to manage patient medical record data digitally, replacing manual recording systems that are prone to errors and data loss. This report discusses the design and implementation of the Electronic Medical Record Information System (RME) at the Community Health Center, which aims to increase efficiency, accuracy and security in managing patient medical records. This system includes recording medical data, treatment history, diagnosis, drug prescriptions, as well as integration with other health service systems. With RME, the medical service process at the Community Health Center is expected to be faster, more transparent and organized. This research uses a web-based system development method with database-based programming, which allows medical record data to be managed centrally and easily accessed by authorized medical personnel. The results of implementing this system show a significant increase in speed of service as well as a reduction in administrative and medical errors.  

Personnel Leave Application Information System Application: The Personnel Leave Information System at the Batu Bara Regency Regional General Hospital is an application built for the web-based leave application process. This research was conducted on the Staff Leave Information System at the Regional General Hospital of Batu Bara Regency using research methods, namely the Observation method, Library Research, Field Research, needs analysis, system design, and system implementation. Use Case Diagram, Activity Diagram, Data Flow Diagram ( DFD), Sequence Diagram, Class Diagram. This application was built using software, namely the PHP programming language, HTML, CodeIgniter, Composer database used by MySQL. The application built operates on the Windows Operating System. The WEB-based Application for the Information System for Applying for Employee Leave at the Batu Bara Regency Regional General Hospital has helped the Batu Bara Regency Regional General Hospital in registering and informing employee leave applications quickly and accurately, and can also provide information to employees to find out whether the leave process has been approved or not. approved.  

Iraq needs to correct public finances to achieve stability and rebuild financial reserves, by adopting a program to measure and analyze the current situation and forecast macroeconomic policies to eliminate the imbalance between domestic demand and aggregate supply, which is usually manifested in the problems of the balance of payments, high inflation, and low output growth, and financial programming is an essential tool for managing policies to achieve stability and rebuild financial reserves.Analyze the current situation and forecast macroeconomic policies to address economic imbalances. However, there is a difficulty in applying the financial programming tool because of  the lack  of accurate information systems to estimate the rate of inflation, unemployment, economic growth, exchange rate, balance of payments and the general budget, in addition to irrational fiscal policy that depends on excessive expansion of government spending, with the sovereignty and control of the public sector over the macroeconomy, compared to the weak and weak role of the private sector. As a result of the policies pursued by successive governments and thus constitute weaknesses for the application of financial programming.

Machine learning has revolutionized various industrial sectors by giving systems the ability to learn and make decisions based on data without the need for explicit programming. This technology plays an increasingly important role in the era of big data, helping to solve various business and operational challenges. This study aims to explore the literature related to the application of machine learning in various industrial fields, identify advantages, challenges, and direct future research. The research method in the form of a literature review was conducted by collecting and analyzing 15 international journals in the last 10 years that are relevant to this topic. The results of the study show that machine learning has a significant impact in the fields of health, finance, and transportation. Techniques such as deep learning and reinforcement learning have expanded the scope of implementation, although challenges such as interpretability, data bias, and computational requirements remain major obstacles. With continued development, machine learning opens up great opportunities for industrial transformation, although it must still pay attention to ethical and desirable aspects.

Production planning is one of the most important factors in improving business continuity. The preparation of production planning is related to the optimization of production for a particular business so that the business can operate efficiently and production activities achieve competitive prices. The preparation of production planning must consider several factors because every business has different goals that it wants to achieve. The Goal Programming method aims to minimize deviations from the targets set by the business, so that business goals can be achieved optimally. This research aims to optimize production in a company that can accomplish more than one goal.  The method used in this study is Systematic Literature Review (SLR), and this study identifies 5 previous journals. The source of information used in this study is articles from national journals published between 2018-2024. The results of this study show that Goal Programming is a very effective tool in production and distribution planning in various industrial sectors.

Customer satisfaction is a crucial indicator in assessing the quality of a company's products, services and overall experience. This research aims to identify the level of customer satisfaction and optimize the available data for effective use in sentiment analysis. In this study, we analyzed 4,353 customer reviews collected over the past year, with 3,481 reviews used as training data and 871 reviews as testing data. The analysis process was conducted using the Cross-Industry Standard Process for Data Mining (CRISP-DM) approach and leveraged the Logistic Regression algorithm to build a predictive model. Model evaluation using the confusion matrix yielded an accuracy of 94.60%, a precision of 94.26%, and a recall of 94.60%. The analysis was conducted using Jupyter Notebook and the Python programming language. The results indicate that sentiment analysis is effective in identifying and predicting customer satisfaction levels, which in turn can help a company’s products improve its service strategies. The optimization of previously underutilized data now provides deeper insights into customer perceptions and expectations, enabling the company to make more targeted decisions and enhance overall customer satisfaction.

Based on the problems currently being faced by Vocational School Diponegoro Banyuputih, one of which is the problem of student savings, the system has been running for 4 years. In the current system, the student savings system at Diponegoro Vocational School is still done manually. If you remember the importance of processing data and information in this system, of course this is felt to be less effective and efficient in terms of problems that arise, so it is necessary to design a computerized system. The aim of this research is to ease the performance of savings administrators in processing data, recording data and making reports on this savings information system so that errors that are often experienced can be resolved, designing and building a financial recapitulation system that directly produces financial reports, creating a financial information system using the Cash method. A suitable base for daily management. System analysis and design is preceded by system development which includes system identification, data and information identification. This system development model is used to describe the system being designed, namely the actual situation. The resulting program was built using the PHP (Hypertext Preprocessor) programming language with a MySQL database. It is hoped that the implementation of the resulting system will facilitate data management quickly and accurately and the preparation of financial reports

SMA Negeri Lewa Tidahu is one of the educational institutions that conducts the process of admitting new students, an annual activity that is still carried out manually. However, with the current development of digital media, nearly every group across various age levels requires fast internet connectivity. The issues faced include inefficient document management, frequent errors by prospective students in filling out manual registration forms, and unclear writing on the forms submitted to the school, making them difficult for operators to read. This results in inefficiency in terms of time and inaccuracies in data entry. Therefore, it is necessary to develop a new student admission system that allows students to access detailed information. This system is designed using the System Development Life Cycle (SDLC) model, which includes stages such as requirements analysis, design, programming, Black Box testing, SUS evaluation, and maintenance. The implementation of this new student admission system will simplify the process for users.

The era of AI and automation technologies has fundamentally changed the structure of jobs and skill needs in the global market, driving significant transformation in the digital business world. This research aims to analyze the impact of these technological developments on the jobs and skills required by the modern workforce. Using the literature review method, this research evaluates various academic sources and related industry reports. The findings show that there is a shift away from routine work towards jobs based on analytical, creative and interpersonal skills, with a growing demand for expertise in data management, programming and emotional intelligence. In addition, the research reveals a significant skills gap, which could exacerbate socio-economic inequality if not addressed. The implications of this study emphasize the importance of investing in retraining and workforce skills development to support adaptation to technological transformation, as well as the need for collaboration between government, educational institutions and industry in designing inclusive and sustainable policies.

Customer satisfaction is a crucial indicator in assessing the quality of a company's products, services and overall experience. This research aims to identify the level of customer satisfaction and optimize the available data for effective use in sentiment analysis. In this study, we analyzed 4,353 customer reviews collected over the past year, with 3,481 reviews used as training data and 871 reviews as testing data. The analysis process was conducted using the Cross-Industry Standard Process for Data Mining (CRISP-DM) approach and leveraged the Logistic Regression algorithm to build a predictive model. Model evaluation using the confusion matrix yielded an accuracy of 94.60%, a precision of 94.26%, and a recall of 94.60%. The analysis was conducted using Jupyter Notebook and the Python programming language. The results indicate that sentiment analysis is effective in identifying and predicting customer satisfaction levels, which in turn can help a company’s products improve its service strategies. The optimization of previously underutilized data now provides deeper insights into customer perceptions and expectations, enabling the company to make more targeted decisions and enhance overall customer satisfaction.

The integration of robotics in education is transforming the way students engage with STEM subjects. This paper explores the effectiveness of robotics in developing problem-solving, programming, and critical thinking skills in young learners. Case studies from various educational institutions demonstrate the positive impact of robotics-based learning in fostering innovation and creativity among children.

The integration of robotics in education is transforming the way students engage with STEM subjects. This paper explores the effectiveness of robotics in developing problem-solving, programming, and critical thinking skills in young learners. Case studies from various educational institutions demonstrate the positive impact of robotics-based learning in fostering innovation and creativity among children.

In the current era of globalization and technology, computers, RFID are examples of information technology tools that are indispensable for meeting human needs in almost every aspect of life, including the management of infrastructure and equipment lending.According to direct research at Widya Praja Ungaran Vocational School, there are only two workers who handle facilities and infrastructure. In carrying out their work assignments, they still experience difficulties. Excess workload and the process of borrowing tools that still lacks a sense of responsibility, so that the results of the work are not maximized.The existence of increasingly sophisticated technology, the management of infrastructure and equipment lending can be done with the help of technological tools that will be implemented in this school. This research aims to make it easier to administer, because this school has not yet added a new workforce.This research can be designed with the help of software (Bootstrap, MySql), programming (PHP, Arduino IDE) and equipment (NodeMCU ESP8266, RFID, LCD, I2C, buzzer, power supply, breadboard, jumper cables, resistors, LEDs) to provide data information. more accurate, effective, efficient and provide a good working atmosphere in this school. It is hoped that this research can reduce work overload and create a sense of responsibility in borrowing equipment, using local networks (wifi / handphone) and computers or laptops, with the research method used is research and development (R&D).

Perpustakaan di Jurusan Manajemen Informatika Politeknik Negeri masih menggunakan sistem manual termasuk pencatatan proses peminjaman, pengembalian dan pendataan, hal ini menimbulkan beberapa permasalahan yaitu pengarsipan menjadi tidak teratur dan berantakan. Tujuan penelitian ini adalah  mengembangkan sistem informasi perpustakaan Jurusan manajemen Informatika (PUSTAKA MI) sebagai solusi untuk mengatasi tantangan dalam pengelolaan perpustakaan secara manual dengan menggunakan model Extreme Programming (XP) dalam pengembangannya. XP mengacu pada empat tahapan utama: perencanaan, perancangan, pengkodean, dan pengujian. Perencanaan melibatkan identifikasi masalah, analisis kebutuhan, dan penjadwalan. Perancangan meliputi pemodelan sistem, arsitektur, dan basis data. Tahap pengkodean dilakukan menggunakan PHP dan MySQL, pengujian dilakukan dengan metode blackbox testing.  Berdasarkan hasil Pengujian Sistem black box testing menggunakan teknik Equivalence partition menujukkan seluruh Fungsional sistem bernilai valid yang berarti bahwa sistem telah berjalan dengan baik secara fungsional. Pengujian terhadap kepuasan  pengguna menunjukkan respon positif, dengan skor tinggi dengan nilai rata-rata 4,52 menggunakan skala likert. Hasil penelitian ini menunjukkan bahwa metode Extreme Programming dapat diterapkan secara efektif dalam pengembangan sistem informasi perpustakaan, memberikan solusi inovatif dalam pengelolaan dan penelusuran koleksi yang lebih reliabel.

The purpose of this research is to build a web-based information system for the Bandungan Sub-district Religious Affairs Office (KUA) that covers marriage registration, referral applications and receipt of marriage registration and referral reports. The research method used is the Research and Development (R&D) method. The R&D method is a research method used to produce certain products and test the effectiveness of these methods. In addition, this research uses the proven waterfall theory. The result of this research is to produce a web-based information system that is able to manage integrated marriage and referral registration data using R&D and Waterfall methods. This information system uses the PHP programming language and uses mysql data storage.

This research aims to develop a web-based information system at the Kebondowo village office. This research was conducted by analyzing the extent to which the Kebondowo Village Office uses an effective information system. This system development uses PHP, HTML and MySQL programming languages with the waterfall model method with several stages, namely requirements analysis, design, development, testing, and maintenance. The results of the study can be concluded that the Kebondowo Village Information System that can support activities in Kebondowo Village to the community. The Kebondowo Village website has been designed and implemented to improve the quality of public services by presenting information about profiles, announcements, and village activity agendas. This initiative makes it easier for Kebondowo Village Officials to deliver information directly without intermediaries, as well as providing convenience for residents to access and receive accurate information, including about social assistance programs and other activity agendas in the village.

One of the museums found in Bali is Subak museum in Tabanan Regency. The establishment of this Museum aims to preserve the traditional institution called Subak as a noble national cultural heritage, and to introduce to the younger generation and foreign tourists about the unique traditional irrigation system in Bali. Lack of supporting facilities in delivering information, making tourists who visit Subak Museum have minimal information. The solution needed in Subak museum is an Android-based E-Tourism application that is supported by Qr-Code technology so as to provide an interesting presentation of data. In making this application using the development of the Waterfall method and designed using the Unified Modeling Language (UML) with the Java programming language for Android and PHP for web services, and MySQL as a database. So that produced an android-based system in Subak museum Tabanan Regency. Based on the results of the tests carried out it can be concluded that the black box testing system functions have been running according to the planning. Then the result of the testing of users using questionnaires generated Application Benefits scores 90.8%, Ease of 86.93%, Interface 82% and Content 90.2%.