Publication Search

This study presents an innovation design for an Internet of Things (IoT)-based watering and liquid fertilizer control system for chili plants using a NodeMCU ESP32. The main problem addressed is the manual watering and fertilizing process, which makes it difficult for farmers to monitor soil moisture, temperature, air humidity, and light intensity in real time. The recommended method used in this draft is Research and Development (R&D) with a prototyping approach because the study focuses on designing, building, integrating, and testing an IoT device through iterative stages. The system is designed using a soil moisture sensor, DHT11, LDR sensor, two-channel relay, two 12 V DC pumps, 16x2 I2C LCD, and the Blynk Mobile application for remote monitoring and control. Sensor data are transmitted to Blynk as percentage values and plant condition statuses, while the water and fertilizer pumps can be controlled using virtual buttons. The control logic defines the optimal condition for chili plants based on soil moisture of 60-80%, temperature of 25-30°C, air humidity of 60-80%, and light intensity of 50-90%. Prototype documentation and functional testing data will be completed in the next stage.

This study aims to design and develop an Augmented Reality (AR)-based application for real-time data monitoring of an automatic weather station at PT. XYZ. The system was developed using a prototyping method, involving five key stages: sensor data acquisition via CBOX devices and the Modbus RTU protocol, data transmission through a Flask-based Web API, storage in a MySQL database, QR code-based target image creation using the Vuforia Engine, and a 3D visualization interface developed with Unity integrated with the Vuforia SDK on Android devices. The system successfully received and stored weather data—such as temperature, humidity, and wind speed—into the MySQL database. The AR application also displayed a stable 3D interface panel over QR code markers, providing real-time data updates through an HTTP-based mechanism. This research demonstrates the successful integration of SCADA, Flask, MySQL, and Unity, enhancing both the functionality and commercial appeal of PT. XYZ’s weather station products. Future research should focus on field testing, cloud network integration, and device compatibility.

The booking process with the food and municipal business (f&b) has an important part to contribute to the direct distribution of goods from the center to the partner. However, in xyz group, booking processes are still carried out by hand through unstructured format whatsapp messages, which leads to nonuniform data, miscommunication, and slow record keeping and distribution processes. This research aims to design standardized reservations forms as more effective course improvements solutions without the need for complex application development. The research method used is a qualitative description with a case study approach. Data collection techniques were made through direct observation during apprenticeship as well as detailed booking channels. In addition, the study adopted the system design approach (prototyping) in composing the proposal reservations system. Research shows that application of standardized booking forms can improve order order order order, improve information accuracy, and reduce the need for clarification by section MCC. The proposed system also facilitated the process of data recapitulation and increased the efficiency of divisional coordination, supporting the distribution operational efficiency of the F&B franchise.

Design and Development of Fire Monitoring System Based on Internet of Things Using Flame Sensor and Smoke Sensor (Case Study at Balai Desa Dlimas). Fire is a disaster that can cause significant losses in both material and human life. Early fire detection is crucial to minimize the potential impact. Balai Desa Dlimas, located in Banyuputih District, Batang Regency, currently lacks an adequate fire detection and monitoring system. Therefore, this study aims to design and implement a fire monitoring system based on the Internet of Things (IoT) using an ESP32 microcontroller, a flame sensor, an MQ-2 smoke sensor, and a DHT22 temperature sensor. The research method used is Research and Development (R&D) with a prototyping model. The system is designed to detect the presence of fire, smoke, and room temperature in real time. Data from the sensors is processed by the ESP32 and sent to the Blynk application to notify users. Warning outputs are also provided through a buzzer and LED lights as on-site alerts. The test results show that the system can detect fire, smoke, and temperature increases with high accuracy. Users can receive real-time notifications via the Blynk application within less than 3 seconds of fire detection. This system is expected to help Balai Desa Dlimas minimize fire risk and can be further developed for implementation across various public facilities.

Perkembangan teknologi informasi yang pesat menuntut organisasi bisnis untuk meningkatkan efisiensi operasional, namun CV. Plaza Meubel Jati Masrum yang berdiri sejak tahun 1982 masih menggunakan sistem pencatatan manual yang menimbulkan berbagai permasalahan, seperti data tidak terbaca, kesalahan penulisan, kesulitan memperoleh laporan keuangan dan laba rugi, hilangnya bukti soft file, serta ketidakpastian kedatangan barang restock dari pemasok. Penelitian ini bertujuan untuk merancang sistem informasi pemesanan berbasis web guna mengatasi permasalahan sistem manual, meningkatkan efisiensi pencatatan, serta menyediakan informasi yang akurat dalam mendukung pengambilan keputusan perusahaan. Metode yang digunakan adalah penelitian dan pengembangan (Research and Development) dengan model prototyping, yang meliputi tahap analisis kebutuhan, perancangan sistem, pembuatan prototype, evaluasi pengguna, dan pemeliharaan. Data penelitian diperoleh melalui wawancara mendalam dengan pemilik, laporan transaksi, dan dokumentasi stok barang. Pemodelan sistem dilakukan menggunakan Unified Modeling Language (UML), yang mencakup Use Case Diagram, Activity Diagram, Sequence Diagram, dan ClassDiagram. Hasil penelitian berupa rancangan sistem informasi pemesanan yang mampu mengotomatisasi laporan penjualan, riwayat pesanan pelanggan, dan pengelolaan data produk. Sistem ini berkontribusi dalam meningkatkan produktivitas operasional serta akurasi identifikasi barang melalui integrasi data. Kesimpulan penelitian menunjukkan bahwa sistem yang dirancang dapat meningkatkan kualitas layanan, dengan potensi pengembangan lanjutan berupa integrasi pembayaran digital dan sistem pelacakan pengiriman.

The development of information technology has encouraged restaurants and cafés to function not only as dining places, but also as venues for hosting various events. However, the event reservation process at Rumah Makan Ny. Hartini and Café Rain is still carried out manually through logbooks, telephone calls, and WhatsApp, resulting in problems such as unorganized data, delayed confirmations, and miscommunication with customers. In addition, the manual system limits access to information regarding venue availability, reservation schedules, and additional facilities required by customers. This study aims to develop a web-based event reservation information system using the prototyping method. The system design was carried out using Unified Modeling Language (UML), including use case diagrams, activity diagrams, and class diagrams to model user interactions, process flows, and system structure. The results of the study show that the developed system is able to automate the reservation process, customer data recording, reservation confirmation, schedule management, and additional facilities management. This system improves operational efficiency, data accuracy, and service quality, while also making it easier for customers to make reservations independently and obtain information quickly and accurately.

The manual driver scheduling system in the “Mobil keluarga”Rudi car rental Medan business often faces conflicts and inefficiencies. Problems such as driver double-booking, where Driver A is scheduled to accompany Guest B while still serving Guest C, lead to service delays and customer dissatisfaction. This research aims to design and implement a driver allocation module integrated with a Geographic Information System (GIS) to optimize the scheduling process. The method used is Research and Development (R&D) with data collection through interviews and system design using UML and prototyping in Figma. The proposed system utilizes GIS to map driver locations in real-time and identify the nearest available driver to a customer, thereby reducing allocation decision time. It is hoped that this research can produce a system design that serves as a solution to improve service efficiency and operational productivity in Rudi car rental Medan businesses. The integration of GIS in driver allocation is the novelty of this study in the context of small and medium-sized rental businesses.

The rapid advancement of digital technology has significantly influenced how small and medium enterprises (SMEs) connect with consumers. Kampung Lawas Maspati SMEs encounter obstacles in expanding their market due to limited online visibility and reliance on conventional sales approaches. This study aims to develop an e-commerce website that addresses these challenges by focusing on user-centered innovation. Using the Design Thinking method, which includes stages such as empathizing, defining, ideating, prototyping, and testing, user needs and challenges were explored through interviews, surveys, and observations to inform the website development process. The resulting platform is intuitive, responsive, and accessible, enabling SMEs to display their products, manage transactions, and engage with customers effectively. The application of this method not only improves market reach but also strengthens the competitiveness and digital literacy of Kampung Lawas Maspati SMEs. Evaluation results show a high level of consumer satisfaction, reaching 91.87%, indicating that the developed website effectively meets user expectations and supports SME digital transformation.

In the digital era, business entities increasingly rely on computerized systems to manage financial activities efficiently. This study aims to design and develop a web-based financial reporting application for UD Jaya Abadi, a trading company located in Magetan Regency. The development process utilized the Rapid Application Development (RAD) methodology to ensure user involvement and rapid prototyping. Data were collected through observation and interviews with the business owner to identify problems in manual bookkeeping and report preparation. The resulting application automates financial processes including sales, purchases, journal entries, and financial reporting in accordance with SAK ETAP standards. System modules include master data management, transaction recording, and financial reporting such as income statements, balance sheets, and cash flow reports. Testing using the black box method confirmed that all system functions operated correctly. This web-based system enhances data accuracy, minimizes human error, and provides real-time access to financial information, significantly improving the efficiency of financial management at UD Jaya Abadi.

This study aims to analyse the design and optimization of digital marketing to increase the brand awareness of the IdRink MSME through the integration of a website and Instagram. The research employed a Research and Development (R&D) method using the Four-D model (Define, Design, Develop, Disseminate), combined with prototyping techniques and evaluation through blackbox testing. Data were collected through interviews, literature review, observation, Google Analytics, Instagram Insight, and A/B testing questionnaires administered to 100 respondents. The results show that the development of a WordPress-based website and a structured Instagram content plan significantly improved IdRink’s digital performance. Within one month, the audience growth rate increased by 256%, average post reach reached 216%, and website traffic recorded 298 users. Brand awareness measurement indicated brand recognition of 74% and brand recall of 79%, higher than the comparison brand in the local beverage category. These findings indicate that integrating a website and Instagram as a digital marketing strategy is effective in moving IdRink from the unaware-of-brand stage to recognition and recall, expanding market reach, strengthening customer engagement, and building a more professional brand image among young urban consumers. The study recommends maintaining content consistency and utilising digital analytics to support future marketing decision-making.

Nava Rent Car is a car rental service business located in Batam. Many customers have complained about the difficulty in making reservations and obtaining detailed information about the vehicles and services offered. To address this issue, the author designed a more informative, functional, and appealing User Interface (UI) website to support the marketing of services. This design was developed using the Design Thinking method with SWOT analysis techniques. This approach was chosen because it focuses on the user, helping to deeply understand their needs, desires, and problems. The Design Thinking process consists of five steps: empathizing to understand the user's problems, defining the problem, ideating solutions, prototyping, and testing the design for user feedback. The result is a high-fidelity website prototype that illustrates the user flow and measures how well the design meets user needs and provides an optimal experience. Feasibility testing showed positive responses, especially regarding the interface design, clarity of vehicle information, and available features. It is expected that this design will help Nava Rent Car enhance its marketing strategy and expand its business reach.

The Student Evaluation of Lecturers (EDOM) at the Faculty of Engineering, Universitas Dr. Soetomo has historically been conducted via Google Forms and processed manually, resulting in slow response times, repetitive recap procedures, and insufficiently documented reporting validity. This study aims to design, build, and evaluate a web-based EDOM system using the Prototype Model (MODEL PROTOTYPE) to improve data collection efficiency, recap accuracy, and the effectiveness of feedback for teaching quality assurance. The development method comprises requirements elicitation with the Quality Assurance Unit through a review of SPMI documents and brief interviews, architectural and interface design (Laravel, MVC pattern, and MySQL), staged prototyping, and rapid iterations based on stakeholder feedback until functional conformity is achieved. The resulting system provides authentication and role-based authorization (Admin, GPM, Lecturer, Student), odd/even period management, a question bank employing a Likert scale, anonymous questionnaire submission, score recap per lecturer and per category (pedagogical, professional, personal, social), dashboard visualizations, and report export to support governance needs. Functional evaluation was conducted through black-box testing on core scenarios (login, period scheduling, submission, recap, and export) and indicated conformance to specifications. User acceptance evaluation employed the Technology Acceptance Model (TAM) to examine perceived usefulness, perceived ease of use, attitude toward use, and behavioral intention; the results indicate positive acceptance and potential for operational adoption. Practically, the prototype approach accelerates requirement alignment, reduces the risk of mis-specification, and facilitates change control, while the Laravel-based implementation supports maintainability, role-based access security, and further feature development. The study is limited to a single faculty; future work may include SSO integration, audit trails, and longitudinal, cross-semester analytics for more comprehensive monitoring of lecturer performance.

The rapid development of information technology has encouraged government institutions to transform the way they manage data and deliver public services. The Protocol and Leadership Communication Division (Prokopim) of Situbondo Regency plays a strategic role in managing the schedules of regional leaders and documenting each official activity as a form of accountability. Currently, these processes are still managed manually, which causes obstacles in recording, searching, and reporting data. Such limitations reduce efficiency and transparency, indicating the urgency of a structured, accessible, and integrated web-based information system. This research aims to design a web-based system that integrates employee data, leadership agendas, and documentation records into a single platform. The research method combines field observations, interviews with Prokopim staff, and literature studies to analyze user requirements. The system design adopts the Waterfall model, which includes requirement analysis, database design, user interface design, and system modeling using Unified Modeling Language (UML) diagrams such as use case, activity, and sequence diagrams. Database structures are represented through class diagrams, while user interface designs are developed using prototyping. The findings of this study produce a system blueprint that provides a structured framework for digitalizing agenda and documentation processes. The proposed design improves accessibility, accuracy, and efficiency in managing leadership activities. Furthermore, this system can be considered as a practical model for applying digital transformation in government institutions, supporting better accountability and service quality in the public sector.

The maintenance of non-aviation defense equipment (main weapon system) is a critical aspect in maintaining operational readiness. However, the Maintenance, Repair, and Overhaul (MRO) system in Indonesia still faces limitations due to manual reporting, inefficiency in spare parts management, and the lack of integration of the Life Cycle Cost (LCC) approach. This study aims to design and develop the Integrated Cavalry Monitoring and Maintenance System (ICMMS) based on a web application that integrates sensors, real-time data analytics, and LCC calculation. The prototyping method was used, involving design, development, integration, and testing phases on the Maung Tactical Vehicle and Anoa Armoured Personnel Carrier at PT Pindad. The results of the prototype implementation showed a significant increase in maintenance efficiency: damage reporting time decreased from ±3 hours to ±1 minute, critical component identification became 95% faster, and maintenance scheduling shifted from reactive to predictive. Additionally, the integration of the LCC algorithm allows for more accurate maintenance cost estimation, supporting technical and strategic decision-making. This study demonstrates that ICMMS based on LCC can be an innovative digital solution to enhance MRO effectiveness and operational readiness of non-aviation defense vehicles in Indonesia. It is expected that this system will improve the resilience and cost-effectiveness of managing Indonesia’s military vehicle fleet.

This study aims to design and implement a web-based employee attendance system with selfie at PT Gunung Selatan. The system was developed as a solution to common issues in manual attendance processes, such as fraud, location limitations, and low time efficiency. Using a Research and Development (RAD) approach and prototyping method, the system was built iteratively with integrated technologies including facial recognition, liveness detection, and GPS. Key features include real-time attendance logging, online leave requests, and integrated attendance reporting. The implementation results show significant improvements in operational efficiency, data accuracy, and transparency in employee attendance management. The system also has the potential for further integration with HR and payroll systems.

Posters are an important means of conveying information and promoting products or services to a wider audience through the power of visual communication. This research focuses on redesigning promotional and informational posters to support the marketing strategy of the Kopi Es Tak Kie website, a long-standing Chinese culinary heritage in Jakarta. The main objectives of this research are to enhance visual appeal, expand market reach, and strengthen cultural values ​​through print media designs that are representative and relevant to the development of the digital era. The approach used is visual communication design with the Design Thinking method. The stages in this method include audience needs research, design concept design, prototyping, and usability evaluation involving target respondents. In the visualization process, Figma software was used to arrange the poster layout, while Procreate was utilized to create complementary illustrations that provide an artistic and authentic feel. The resulting poster design emphasizes the use of a color palette of brick red, cream, and dark blue, combined with script and sans-serif typography. This combination was chosen to convey a cultural message while emphasizing the exclusive image of the Kopi Es Tak Kie brand. The visual harmony of color and typography enhances the cultural narrative while emphasizing the modern brand identity. The primary audience for this poster is young adults aged 22–40 who are interested in the fusion of traditional coffee culture and modern lifestyle. The findings of this study indicate that the redesigned poster is effective in bridging cultural heritage with digital branding, strengthening the identity of Kopi Es Tak Kie across both offline and online platforms. Thus, the poster medium is proven to act as a communication bridge connecting historical values ​​with contemporary marketing strategies.

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

The advancement of information technology has encouraged public service institutions, including PT. PLN (Persero), to adopt web-based systems to improve operational efficiency. At ULP Arso, the current monitoring of customer installment fine payments is managed manually using physical documents and basic spreadsheets. This method is prone to data entry errors, information redundancy, and delayed updates, which hinder timely decision-making and customer service. To address these issues, this study aims to design and develop a web-based monitoring system that facilitates real-time data access and simplifies tracking of installment payments. The research employed the prototyping development model, emphasizing iterative design involving early user feedback and continuous refinement. Data were collected through interviews, direct observations, and documentation at ULP Arso. The resulting prototype includes modules for user registration, login, customer and admin dashboards, bill management, and financial reporting. Functional testing using the blackbox approach demonstrated that all features operated according to specifications, and the system responded reliably across various usage scenarios. The study contributes by offering a practical solution that digitizes manual processes, thereby improving data accuracy and streamlining administrative tasks. From a practical perspective, the system supports data-driven decisions and enhances transparency and accountability in the customer billing process, aligning with the broader goal of improving public service quality in the electricity sector.

Reverse engineering is the process of reproducing or recreating an existing model—whether it is a component, subassembly, or complete product—without relying on the original design documentation or CAD data. One of the key techniques that supports this process is photogrammetry, a method that utilizes a series of photographic images to identify, capture, and reconstruct the geometry of physical objects in three dimensions. Photogrammetry offers advantages such as low cost, portability, and non-contact data acquisition, making it a valuable tool in various engineering and industrial applications. This study aims to analyze the influence of two important factors—namely, the number of photographs taken and the intensity of lighting—on the dimensional accuracy or deviation of 3D models produced through photogrammetry-based reverse engineering. A quantitative experimental approach was used, where both variables were systematically varied to evaluate their effect on model precision. Data analysis was conducted using a Two-Way ANOVA factorial test to determine the statistical significance of each factor and their interaction. The experimental results revealed that using 54 photographs yielded the lowest average dimensional deviation among all tested conditions, although the difference was not statistically significant. Similarly, variations in light intensity showed no statistically significant effect on accuracy, but visually, an illumination level of 200–250 lux tended to provide more consistent and stable model outputs. No significant interaction was found between the two variables, indicating that they operate independently in affecting model accuracy. Overall, the combination of 54 photographs and a light intensity of 250 lux was visually identified as the most effective setup. The findings of this research contribute to the optimization of photogrammetry workflows in reverse engineering, offering practical insights for producing high-quality CAD models for use in design, prototyping, and manufacturing processes.

The digitalization of cultural preservation through education is crucial in the digital era. The Betawi Cultural Community, Sanggar Bale Bambu in Depok, West Java, faces challenges in introducing Betawi culture to the public, particularly in the documentation and management of cultural services. Although many studies on cultural digitalization exist, few educational applications directly collaborate with cultural communities and support cultural services. This study aims to design the User Interface (UI) and User Experience (UX) of a mobile application as a learning medium for Betawi culture and cultural services, beginning with user needs identification to minimize development errors. The method used is Design Thinking, which emphasizes empathetic understanding of user needs and produces innovative solutions. The research process includes problem formulation, empathy, ideation, responsive prototyping using Figma, and qualitative Usability Testing. The result is an application Prototype with six main educational features: pencak silat, ondel-ondel, Betawi music, Betawi accessories, lenong, and palang pintu. Testing showed that the application is easy to use, informative, and effective as a digital medium for introducing Betawi culture. Further research can continue with in-depth quantitative Testing, back-end integration, and broader user Testing for additional validation.