Project Management / Project Manager (PM) definition (in short)
Project Manager is the person responsible for leading a project from its inception to execution. This includes planning, execution and managing the people, resources and scope of the project. Project Managers must have the discipline to create clear and attainable objectives and to see them through to successful completion. The Project Manager has full responsibility and authority to complete the assigned project.
The primary challenge of project management is to achieve all of the project goals and objectives while honoring the preconceived constraints. The primary constraints are scope, time, quality and budget. The secondary —and more ambitious— challenge is to optimize the allocation of necessary inputs and integrate them to meet pre-defined objectives.