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Lubuk Karet Village has great potential in rubber production. However, the rubber sales process is often faced with various obstacles, such as difficulty in determining the right price and lack of transparency in transactions. This study is an analytical study using a qualitative approach. The aim is to analyze and design a prototype of a rubber sales application. This study uses questionnaires and interviews as the main data to answer research questions. The output of this study is the identification of problems and concerns of farmers related to how to calculate market prices, difficulties in recording transaction history, and minimal transparency of information regarding selling prices in the wider market. Then the second finding is regarding the prototype design of a prospective rubber sales application which will later be further developed by researchers. From the results of the analysis in this study, it is hoped that there will be further development of the application with farmer data entry features, rubber price calculations, and transaction tracking. It is hoped that this application can provide convenience for farmers in selling their crops, increase farmers' income, and provide transparent information regarding market prices. In addition, this application can also be a promotional media for local rubber products.

Scheduling content on social media effectively and efficiently has become an important need for users, especially users who use social media as a tool to help run their business or organization. This research aims to design a user interface for a website-based social media scheduling application using the Rapid Application Development method and Unified Modeling Language (UML). This method was chosen because development can be done quickly through literacy that involves users so that it can fulfill everything needed to create an optimal system. The research stage begins with user interviews, and later this data will be used to develop an initial UI design prototype designed using Figma. UML is used to visualize the design model and also how the system will run later. This system is expected to help make posting social media content easier.

The development of technology with digital image processing is often utilized to solve various problems in image processing, such as facial recognition, object detection, and interaction between users. In this study, we developed an interactive hand gesture-based game titled "Slap Mosquito" that utilizes image processing techniques to control the game through hand gestures. Using Rapid Application Development (RAD), Python, OpenCV, and Pygame methodologies, this game allows users to slap mosquitoes virtually in real-time through hand gesture recognition that is read by the camera and translated into in-game actions. RAD allows rapid development iterations and improvements based on user feedback, which is essential for improving system responsiveness and accuracy. This study focuses on detection precision, system responsiveness, and the impact of lighting on game performance, as measured using frames per second (FPS) and user gameplay results. The test results show that optimal lighting meets high detection accuracy, while low lighting conditions have a negative impact on accuracy and responsiveness. The results of this study provide insights for further development of gesture-based applications, especially regarding the importance of optimizing technical parameters and RAD methodology in improving user experience.    

Marketplace system is a means of meeting sellers and buyers online, in this case service providers and car renters. With this information system, renters no longer need to bother looking for the required car that matches the criteria, and service providers are also easier in marketing and expanding their marketing reach. This system was built using the RAD (Rapid Application Development) method of development which allows customers to place orders, select vehicles, eliminating complexity in the traditional process involving visits to rentals. In car rental services there are several problems that need to be resolved. First, there is no web-based information system service that makes it easy for customers to access car rental service company information. Second, conventional services are still fairly slow. Currently, reservations are made in two ways, namely coming to the place or contacting the telephone number on Whatsapp so that prospective tenants have to wait for a response from the rental provider to get information about prices and available cars. Therefore, a car rental information system is needed that specifically serves fleet rental with online booking to display transaction information in the form of car rental and return on the system dashboard to support strategic purposes. This research focuses on building a car rental information system using the PHP programming language with the CodeIgniter framework.  

Every university certainly has a library to provide learning facilities to the academic community. According to Article 55 of the National Education System Law Number 2 of 1989, one of the requirements to have a university is to have a library. The development of libraries today has shifted from systems that initially still used manual systems, to automated systems that can later be developed into online service systems or digital libraries. However, in this case, according to the findings at the time of college accreditation, the recording of library visitors still uses a ledger that is handwritten by visitors. in terms of college accreditation, it is necessary to use a web-based Library Visitor E-Logbook that has a positive and significant impact. In this study, the manufacture of the E-Logbook system uses the Rapid Application Development method and produces system requirements that have 2 access rights, namely Visitors and Library Operators as well as System Design, Database Design in the form of Entity Relationship Diagrams and Web-based system applications. From this research, the Library Visitor E-Logbook system can provide benefits in administrative processes related to recording and monitoring computerized visitor visits and is able to provide convenience in searching data and downloading visitor reports

Effective knowledge management is crucial for maintaining competitiveness in today's digital era. PT. Pesona Edukasi, as a developer of educational software, faces challenges in managing and disseminating knowledge among their frequently mobile IT Helpdesk team. To address this, this research aims to implement a Mobile Knowledge Management System using the Rapid Application Development (RAD) approach at PT. Pesona Edukasi.The RAD method was chosen to enable rapid, flexible, and responsive application development to meet changing business and technological needs. This study includes needs analysis, system design, prototype development, and application evaluation to ensure its effectiveness in enhancing access and collaboration in knowledge dissemination throughout the company. The results of the research, following the application implementation, demonstrate a positive contribution to improving operational efficiency and IT service quality at PT. Pesona Edukasi, accelerating knowledge exchange and enhancing the productivity of the IT Helpdesk team. 

Gobak sodor is a traditional Indonesian game.  This article is compiled to relate to the application of detection tools in the simulation of the gobak sodor game. The goal is to produce a prototype of a tool that can help facilitate the detection process in the movement of the gobak sodor game. The method used is the RAD (Rapid Application Development) method which has stages, namely requirement planning, design workshop and implementation, data collection techniques, namely literature studies, and documentation. As a result of the implementation of this tool, it will be able to work automatically when there is a player who crosses the line will block the light reaching the LDR. The findings of this device, the existence of an alarm and lights turn on when there are players who cross the barrier line.  This is because a change in resistance in the LDR triggers an alarm system or indicator light to detect movement. If the player's body hits the LDR sensor, then the device will sound.

Methodology is a very important basic framework in the design and development of professional software, aimed at creating an information system that meets the business needs of an organization. Success in software development relies heavily on managing the software project as a whole. Establishing a methodology includes high dynamics in the design stages of a model that describes the activities and life cycle of a system. SDLC (Systems Development Life Cycle) or Systems Development Life Cycle, in the context of systems and software engineering, is a process that includes the creation and modification of systems, as well as the models and methodologies used to develop them. This discussion will explain the analysis of selecting software development methodologies, including waterfall, prototype, iterative, spiral, and rapid application development (RAD). It is hoped that the results of this discussion can provide considerations in choosing and using the right methodology based on each individual's needs, strengths and weaknesses, as well as other factors such as familiarity with technology, system complexity, system reliability, and short and precise time requirements, as well as referencing several scientific journals.

The STMIK Amikom Surakarta Assistant Forum is a forum under the UPT STMIK Amikom Surakarta which aims to assist the system of teaching and learning activities in STMIK Amikom Surakarta lectures. In the process of assistance activities taking place, assistants have several problems such as filling out attendance papers that use paper as evidence for attendance that has carried out assistance tasks, then in the process of recapitulating the treasurer's attendance as financial administrators must collect proof papers on each assistant making less effective, and lastly during the scheduling process that uses Excel as a scheduler tool, and will later be shared through groups, this creates a lack of schedule synchronization if at any time there is an updated schedule. Because of this problem the author aims to solve these problems by creating an information system that can perform attendance, recapitulation, and scheduling without using paper and efficiently. The researcher in this research process uses the RAD (Rapid Application Development) method because this method is fast and efficient in the development process. In the manufacturing process, researchers use MERN Stack technology.