Project management provides a framework for managing a set of interrelated projects and operations, while such projects are hard to implement separately. In general, many projects are large, complex, and long-lasting, contrary to limited projects with unique and temporary plans. The main difference is indeed in management and response to uncertainty and change. A plan is a set of interrelated projects.

Today, projects are more complicated and difficult to manage and require an executive body holding a great technical capacity and executive system to fully equipping and organizing resources and monitor and manage them