The document explains the Model-View-Controller (MVC) architectural pattern used in web development, emphasizing how it separates an application into three components: model, view, and controller. This separation promotes code reusability, maintainability, and collaboration among developers, making MVC a popular choice for web projects. Techrish is highlighted as a leading MVC development company in the UK, known for delivering high-quality, scalable web applications tailored to client needs.