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In the current era of information technology, easy and efficient transaction management is an important requirement in the business world, both small and large scale. Rumah Makan Mie Happy is a medium-scale culinary business. Happy Noodle Restaurant provides noodle-based preparations. In its daily life, Happy Noodle Restaurant can serve around 100 consumers, so that the service process requires speed to serve consumers. But in fact, Mie Happy Restaurant still uses manual data processing and transaction management, so it often experiences problems such as slow payment processes, frequent loss of receipts or proof of payment, difficulty in recapitulating or reporting transactions both daily and monthly, and frequent errors in the calculation process. From the problems experienced by Mie Happy Restaurant, the author is interested in developing a web-based cashier application that can help in all matters related to transaction management at Mie Happy Restaurant. The research conducted aims to build or develop a cashier application for Happy Noodle Restaurant that can improve the efficiency and effectiveness of transaction management. This cashier application was built or developed using Hypertext Markup Language (HTML) and Hypertext Preprocessor (PHP) with Visual Studio Code editor and MySQL Database Management System (DBMS). The results of testing with black box testing show that the cashier application developed in functionality has run as expected. This web-based cashier application provides convenience for admins and increases the effectiveness and efficiency of operational activities.

This study aims to develop a web interface for a digital wedding invitation service provider (Fairytale) using the User-Centered Design (UCD) approach. The research method follows the UCD approach, consisting of four main stages: (1) understanding the context of use, (2) identifying user needs, (3) designing solutions, and (4) design evaluation. Data collection involved 36 respondents through questionnaires, interviews, and usability testing. The findings highlight three key functional requirements: template customization (94.4%), guest list management (88.9%), and digital RSVP (86.1%). The implementation of UCD resulted in significant improvements in usability metrics: task success rate increased from 65% to 91.7%, error rate decreased from 35% to 8.3%, and user satisfaction rose from 3.2 to 4.3 (on a 1-5 scale). Mobile-first optimization became a central focus, given that 72.2% of users prefer accessing the platform through mobile devices. This research contributes to the development of the UCD model for digital platforms in Indonesia and provides practical guidelines for user-centered interface development. The study's limitations include a small sample size and a geographically focused scope, suggesting opportunities for future research with a larger scale..

This study aims to analyze the implementation of management functions, the development of Islamic propagation (dakwah), as well as the supporting and inhibiting factors in the management of the Baitussalam Grand Mosque in Purwokerto. The research employs a qualitative approach with structured interviews conducted with mosque administrators, community leaders, and congregants. Data were collected through observation, interviews, and documentation. The findings indicate that the Baitussalam Grand Mosque applies management functions such as planning, organizing, staffing, directing, and controlling. The developed dakwah activities include regular study sessions, religious gatherings for elderly women, Qur'anic Education Parks (TPQ), and special activities during Ramadan. Supporting factors for successful mosque management include regular funding from congregants through donation boxes and benefactors, spacious building infrastructure, adequate facilities, and solid teamwork among administrators. However, challenges include limited government funding, a lack of sufficient mosque courtyard space, and less supportive surrounding environmental conditions.This study highlights the importance of enhancing mosque empowerment to maximize its social benefits within the community.

The results of the study show the application of environmental accounting (Green accounting) according to the Islamic perspective of waste management of PT. Sources of Graha Sejahtera (SGS) include Avoiding Air Pollution, Good Waste Management and Green Spaces.  PT incurs costs for environmental activities such as waste management, environmental monitoring costs, employee training costs, and environmental activity audit costs. All environmental costs, and allocating these costs based on cost types in a structured environmental accounting contribute well to environmental performance. The impact of the application of environmental accounting in waste management at PT. Sumber Graha Sejahtera (SGS) produces goodness and cleanliness because when a company carries out activities support environmental management, the management must wisely record every cost incurred related to environmental activity. These costs are referred to as environmental costs that must be charged to functions within the company appropriately, for example, production functions, marketing functions and other functions.

Muhammadiyah, which was founded in 1912, has played a pioneering role in social and educational movements in Indonesia. This article examines Muhammadiyah's contribution to improving the quality of life of the community through various educational programs and social initiatives. Research shows that Muhammadiyah has established more than 17,000 educational institutions that provide access to quality education, as well as implementing community empowerment programs that encourage economic independence. In addition, Muhammadiyah is active in social activities, including disaster management and human rights advocacy, which shows the organization's commitment to social justice. Through a holistic approach to education that prioritizes character and leadership development, Muhammadiyah seeks to form a young generation that cares about society. The aim of this research is to reveal Muhammadiyah's role in improving the quality of life of the Indonesian people through the educational programs and social initiatives it carries out. This research method uses a qualitative method with a descriptive approach to examine the role of Muhammadiyah in social movements and education in Indonesia. The research results show that Muhammadiyah not only functions as a religious organization, but also as an agent of change that contributes to creating a more prosperous and just society in Indonesia.

Letjen Sutoyo RW 03 Lowowaru is an urban area in Malang City. This area has a Health Center that plays a vital role in maintaining public health. The aging process is characterized by a decrease in the body's ability to adapt to external stress, which leads to a decrease in the physiological function of organs, systems, and overall body ability. One of the important functions of the body is to form balance, which refers to the ability to maintain the center of the body's position against the supporting base when standing, sitting, moving, or walking (Winter, 1995 in Howe, et al., 2008). This balance is essential to maintain stability when moving from one position to another (Lee & Scudds, 2003).

Public service delivery in taxation is a vital function of government in fulfilling citizens' administrative rights, particularly through the issuance of the Taxpayer Identification Number (NPWP). The quality of this service directly influences taxpayer satisfaction, understanding, and trust in tax institutions. This study aims to analyze the quality of public service in NPWP issuance at the Primary Tax Office (KPP Pratama) of Dumai City and to identify supporting and inhibiting factors affecting service implementation. This research employed a descriptive qualitative approach. Data were collected through observations, in-depth interviews with tax officers and taxpayers, and documentation studies. Data analysis was conducted using an interactive model consisting of data reduction, data presentation, and conclusion drawing. The assessment of service quality was based on the SERVQUAL framework developed by Zeithaml and Parasuraman, encompassing five dimensions: tangibles, reliability, responsiveness, assurance, and empathy. The results show that NPWP issuance services at KPP Pratama Dumai City are generally well implemented. Adequate facilities, adherence to standard operating procedures, responsive officers, data security assurance, and courteous service attitudes support service quality. However, challenges remain, particularly related to limited waiting room capacity during peak periods, varying levels of taxpayer understanding, and the need for clearer procedural information. Continuous improvement in communication, service management, and capacity planning is required to enhance public service quality.

Cost Recovery is a vital element in production sharing contracts (PSCs) within the oil and gas sector, allowing contractors to recover costs incurred during exploration and production through revenues generated from oil and gas production. This mechanism has a direct impact on the sustainability of operations and the management of natural resources, which in turn plays a critical role in supporting the national economy.This study aims to analyze the role and contribution of the cost recovery scheme in enhancing Indonesia's economic development, focusing on optimizing state revenue, increasing both foreign and domestic investment, and promoting the development of sustainable energy infrastructure. The method used in this study is a literature review, which includes data from journals and published articles.The main findings of the study show that the cost recovery scheme not only functions as an instrument to ensure the sustainability of upstream oil and gas operations but also has a significant impact on other economic aspects. In the context of national economic development, this scheme contributes to increasing state revenue through taxes and royalties, creating jobs, and supporting local economic development in oil and gas-producing regions. Moreover, cost recovery opens up opportunities for technology transfer and enhances human resource capacity in the energy sector.

Public Green Open Space (RTH) is an essential element in urban spatial planning to support environmental sustainability. Through the process of photosynthesis, RTH helps absorb carbon dioxide (CO₂) produced by human activities, such as transportation and industry, thus contributing to climate change mitigation. This study aims to explore the role of RTH in absorbing CO₂ and the challenges faced in its management. The study was conducted using a systematic approach through literature analysis and case studies in several cities in Indonesia and around the world. The research results indicate that vegetation type, area size, and environmental conditions are the main factors affecting the carbon absorption capacity of RTH. Large trees have a significantly higher capacity to absorb CO₂ compared to shrubs and grass, with the ability to absorb up to 250.63 tons of CO₂ per year per tree. However, challenges such as limited RTH area, urbanization pressure, and lack of public awareness remain obstacles to optimal RTH management. The recommendations of this study include increasing the area and quality of RTH through data-based strategies, community participation in management, and the development of policies that support sustainability. With proper management, RTH can function as a climate change mitigation tool while improving the quality of life for urban communities.  

Educational institutions play a vital role in shaping human resources and adapting to rapid changes. To address globalization and technological challenges, they must implement effective and sustainable reforms, with strategic leadership as a key driver. This study examines the role of strategic leadership in designing and implementing renewal models in educational institutions. It identifies factors influencing success and offers recommendations for effective practices. Strategic leadership is crucial in enhancing educational quality and system effectiveness. Leaders act as internal change agents, develop innovative strategies, and coordinate resources to achieve reform goals. Using library research methods, this study reviews literature, including books, journal articles, and research reports on strategic leadership and educational reform. Data analysis involves identifying themes, theories, and best practices. Findings reveal that strategic leaders function as visionaries, motivators, facilitators, and resource managers. Their effectiveness depends on clear strategy formulation, consensus-building, and resistance management. Support from stakeholders, effective communication, and community involvement are pivotal for successful reform implementation. This study emphasizes the importance of strategic leadership in fostering transformative changes within educational institutions.

In the digital business environment, web-based Point of Sale (POS) systems play a vital role in supporting transaction processing, inventory management, and operational decision-making. Ensuring the functional reliability of such systems is essential, particularly in critical authentication features that regulate user access. However, undetected functional errors within login and registration modules may disrupt operations, compromise data integrity, and reduce user experience quality. Therefore, this study aims to evaluate the functionality of the Wingpos website, focusing specifically on the login and registration features. The research applies the Black Box Testing approach using the Equivalence Partitioning technique, which enables systematic functional validation by classifying input data into representative valid and invalid partitions without requiring access to source code. The testing process involved designing structured test cases, executing input scenarios, and comparing actual system outputs with expected results. The findings reveal that most authentication processes function in accordance with system specifications, as seven out of ten test scenarios produced expected outcomes. Nevertheless, three discrepancies were identified, including inconsistent error message validation in the login feature and the system’s inability to properly verify invalid email domains during registration. These results indicate that while the system demonstrates general functional reliability, certain validation mechanisms require refinement. In conclusion, the application of Black Box Testing with the Equivalence Partitioning technique proves effective in identifying functional gaps and supporting quality assurance processes in web-based POS systems, particularly in strengthening authentication feature reliability and improving overall system performance

This study aims to analyze management at Atlas Sport Club Surabaya, covering aspects of planning, organizing, directing, and controlling. The research employs a descriptive qualitative approach, using a survey focused on descriptive methods. The sampling technique used is snowball sampling, with subjects including HRD, the gym manager, fitness instructors, graphic designers, the head of marketing, and marketing communications. The instruments used include observation sheets, interviews, and documentation. Data analysis is conducted through steps of reduction and presentation to draw conclusions. The research findings indicate that: (1) Planning at the Fitness Center Atlas Sport Club Surabaya has been aligned with organizational goals. The plans include well-structured long-term and short-term work programs based on sports management principles. (2) The organizing aspect shows a harmonious working relationship between the manager, fitness instructors, and the front office, reflecting alignment with sports management practices. The organizational structure has been effectively coordinated, with the manager maintaining an open attitude and motivation to enhance the fitness center's well-being. Each employee performs tasks in accordance with the terms outlined in their contracts. Directing at the fitness center is effectively carried out through team formation that involves a personal approach to employees. (3) Employee direction can occur at any time by leaders, including the owner, manager, and HRD. Direction from the manager and HRD takes place daily via WhatsApp groups. (4) Supervision at the fitness center is conducted effectively. HRD and the team perform daily evaluations, while the manager conducts monthly evaluations alongside financial reports and target achievements.In conclusion, management at the Atlas Sport Club Fitness Center in Surabaya operates according to management functions. The study suggests that Atlas Sport Club should address infrastructure improvements for facilities that are beginning to deteriorate, and it is recommended that the fitness center add more equipment to support operations.

Every information related to accounting is handled by the Accounting Information System. (AIS). The purpose of this study was to assess whether the accounting information system at the UPTD Hiliweto Gido Health Center has been implemented successfully and efficiently, and to examine the function of the system in inpatient services. The research methodology of this study uses an exploratory qualitative approach, specifically by using the Google Scholar internet database to obtain secondary data from national papers and conducting focused interviews. The results of this study are that the installation of the accounting information system at the Hiliweto Gido Health Center has been successful based on research findings. This study examines how a more integrated and real-time accounting information system can improve the efficiency of inpatient services at the Health Center, especially in resource management and financing.

This study explores the potential of water hyacinth (Eichhornia crassipes) as a bioelectricity source through Plant-Microbial Fuel Cell (PMFC) technology. The research aimed to evaluate the ability of water hyacinth to generate stable electrical energy when integrated with electrodes in a controlled laboratory setting. The method applied was an experimental laboratory design, where water hyacinths were placed in containers filled with water, equipped with anode and cathode electrodes, and connected to a voltmeter and ammeter for continuous monitoring. Observations were carried out for 72 hours with periodic recording of voltage and current values. The findings show that water hyacinth can generate measurable electricity, with voltage ranging from 0.25 V to 0.32 V and current between 0.18 mA and 0.24 mA, indicating the potential of this plant to produce renewable energy. Moreover, the results reveal that the generated electricity was relatively stable during the observation period, though variations occurred due to environmental conditions. The implications of this research suggest that water hyacinth, often considered a weed, can be utilized not only for energy production but also as part of ecological management programs. This dual function makes PMFC technology a promising alternative for sustainable energy development, especially in rural or remote areas where access to conventional electricity remains limited.

This study discusses the importance of the presence of research and innovation management institutions that are increasingly recognized along with the needs of the Government and local governments to resolve problems, development gaps and find solutions to regional government problems. This can be interpreted that BRIDA is not only transformed into a manager of supporting functions in the field of research and development as before but its presence is required to be able to fundamentally change the governance of research and development and increase its connectivity with the innovation system and global competitiveness. In the perspective of regional government policy, it is required to be able to formulate quality and evidence-based policies. This study aims to analyze the role of the Regional Research and Innovation Agency in supporting the development process of the city of Medan and supporting the development of the city of Medan. The method used in this study is a qualitative descriptive method. Data collection techniques in the form of observation and documentation. Based on the results of the study, it was obtained that the Regional Research and Innovation Agency has a policy formulation and strategy that supports the vision of developing the city of Medan into an innovative and highly competitive city. Then the Regional Research and Innovation Agency has great potential to continue to be the main driver of sustainable and innovative city development.

This study focuses on black-box testing of JivaJoy software, an online product stock management and ordering system. The primary goal of this research is to evaluate the functionality and performance of the system's key features, including profile management, CRUD operations for admin and customer accounts, product stock management, shopping cart, order management, and AI counseling. Black-box testing was applied to assess whether these features meet expected operational standards and user requirements without considering the internal code structure. The test results indicate that most features function as expected. However, some issues were identified related to input validation, particularly with email format, phone number length, file uploads, and product stock management. Additionally, the order management and AI counseling features showed deficiencies in error handling and input validation. Based on these findings, the study recommends improvements in input validation, product stock management, shopping cart functionality, and AI counseling systems to enhance the reliability and performance of the JivaJoy platform. These enhancements are essential to deliver more efficient, secure, and optimal services, ensuring better user experiences and customer satisfaction.

The management of pharmaceutical supplies in the Pharmacy Installation of a hospital consists of nine aspects: selection, demand planning, procurement, acceptance, storage, distribution, destruction and withdrawal, control, and administration. This study aims to analyze the management of pharmaceutical supplies at a hospital in Medan in 2023 using a qualitative method through direct observation and in-depth interviews with both primary and secondary data. Interviews were conducted with nine informants, including key informants, main informants, and supporting informants. The results of the study indicate that, overall, the management of pharmaceutical supplies is functioning well but not yet optimal. Three aspects that have been well implemented are selection, destruction and withdrawal, and administration. Meanwhile, siSwasta di Kota Medan other aspects, such as planning, procurement, acceptance, storage, distribution, and control, have not been fully optimized. The issue of medication shortages can be addressed through collaboration with eSwasta di Kota Medanternal pharmacies. To improve management, it is recommended that the hospital enhance the storage facilities, which are currently inadequate, by providing appropriate pallets and involving all related parties to work together in improving the system, as well as conducting regular monitoring and evaluation.

Mekarbuana Village located in Tegalwaru, Karawang district, West Java, is about 45 kilometers from the center of Karawang, and has potential for agro-tourism and natural tourism, because according to the village head, Jaji Maryono, the village is a provider of coffee, durian, mango, avocado, and bananas. The tourism  that are available are Curug Cigentis, Curug Bandung, and tours along the flow of the river. This tourist destination is a favourite destination of both locals and citizens around Karawang to spend the weekend with the family. Due to the tourist potential in his village, the village chief acknowledged that he wanted to bring Mekarbuana Village  into a tourist village, but still needed support and enhanced human resource capacity (HRM) to manage the village. The problem is that the tourism organization in the village are not functioning, so the wheel of tourism in that village is still not balanced. This activity uses methods of accompaniment, socialization, and education carried out in integration with KKN students to the community and tourists in Mekarbuana Village. The result of this community service activity is the reactivation of the pokdarwis management, the existence of the organization structure, the presence of the work plan, a varied tour package, as well as the Mekarbuana Village  already registered in the JADESTA. As to the conclusion of the activities, they feel very grateful and hoped that the organization will be able to maximize its management, and continue to run consistently and professionally in managing tourism in the village.

Putra Andalas Samudera is a company that operates in the field of domestic and overseas agents, PT. Putra Andalas Samudera provides ship entry and exit licensing services, certificate extensions, and management of sign on and sign off seafarers' books. The data collection methods used by the author in writing this paper are the field observation method (field research) and the library research method. This paper aims to determine the process of managing the sign on/off book for ship crew sailors at PT. Putra Andalas Samudera, the process began after a direction from the owner that there would be a crew change activity, after that the process of signing on the crew's seaman's book went to the KSOP class 1 Dumai office. Signing on/off in the sailor's crew book is very important for a seafarer, apart from being a sign that the seafarer has legally joined the ship, it also adds to the seafarer's work experience. The problems faced in the process of signing on/off the crew sailor's book were the delay in information from the owner to sign on the crew's sailor's book which resulted in hampering the clearance process. Good cooperation and coordination between shipping companies and related agencies in signing on/off seafarers' books is very necessary for smooth service to crew document handlers. It is important to remember that the purpose of coordination is so that the relevant agencies can carry out their duties and functions smoothly, safely and efficiently.    

This research focuses on evaluating the Combox web application, a digital tool designed to help Food and Beverage (F&B) business owners strengthen their online presence. The analysis was carried out through Black Box Testing, specifically using the Equivalence Partitioning method, to assess core functionalities like login, logout, product management, and pagination. The findings reveal that while most features function as intended, there are issues with product addition and editing, as well as pagination when no data is available. These results highlight areas that need refinement to improve the application’s reliability and user experience. In summary, this research supports the advancement of a digital platform that enables F&B businesses to harness technology effectively in today’s competitive landscape.