Learn about the Rapid Application Development (RAD) Model, a flexible and iterative software development methodology that emphasizes quick prototyping, user feedback, and fast delivery. Discover its key phases, advantages, and challenges. Waterfall Model is a famous and good version of SDLC (System Development Life Cycle) for software engineering. The waterfall model is a linear and sequential model, which means that a development phase cannot begin until the previous phase is completed. The RAD model in software engineering is a software development method that favors rapid prototyping and iterative development. It is best suited for projects where requirements are not well defined or changing, and where rapid development and regular feedback are important. Learn about the RAD model in software engineering, its phases, benefits, and real-world applications for rapid software development and faster delivery.