The waterfall model

The waterfall model (one of the approaches to software development or web development project) describes a linear development method that is often considered the classic approach to the systems development life cycle. This model is a sequential model, used to create different kinds of software, where project development is seen as flowing steadily downwards (like a waterfall) through the phases of software development requirements analysis, UI design, software implementation, project verification and software maintenance. The process itself can be divided into different phases, depending on the IT project or other web development requirements.