Designing a lot sizing calculator application as a practicum tool for the industrial Engineering Project (PTI) using the Rapid Application Development (RAD) method

An application is a tool designed to perform specific tasks to meet user requirements. Applications can facilitate the learning process in practicums. In the Material Requirement Planning (MRP) module of the Industrial Engineering Project (PTI) practicum, the current tools are inadequate in terms of both theory and process. These deficiencies include incompatible data input, a limited number of methods, the absence of step-by-step solutions, and a lack of output visualization. Such issues can result in suboptimal student understanding. In this study, a lot sizing calculation application was designed specifically for the needs of the PTI MRP module. The application was developed using the Rapid Application Development (RAD) method and implemented via Macro Visual Basic for Application (VBA). The output of this research is an MRP lot sizing calculator application. Verification results show that the application’s calculations align with manual theoretical results. Black box testing confirmed that all functional requirements were successfully met. Usability testing yielded an overall satisfaction score of 91.2%, indicating that the application is suitable for user implementation. This application system is expected to enhance student understanding and optimize the Industrial Engineering Project practicum process.