Architectural approach involves a careful separation of frontend and backend functions, which speeds up the development process. This separation ensures that business logic and data manipulation happen on the inside, while the presentation layer lives on the outside. This distinction allows teams to focus on their own areas, enabling efficient parallel development, easier debugging, and the ability to update front-end elements without impacting back-end logic. As a result, Drupal provides a conducive environment for collaborative development and seamless integration of modern design practices.