A project that included a series of actions from beginning to end. A crucial route is a combination of actions that encompasses the project's longest path.  Rational Unified Process (RUP) is an approach for improving product applications. It is an object-oriented strategy that is used to ensure effective project management and high-quality software creation.  The project deliverables are a set of measurable products and services that are supplied to the end customer as an output at the end of the project.