Project management is a complex undertaking with many stages and processes. It should follow the full business lifecycle, from definition and justification of the project, through to delivering demonstrable benefits for the business. The project manager's skills are essential from the beginning. The defined approach and its business case will rely on a good understanding of the project process along with reliable estimating and carefully considered planning. Each project should have a proper definition, for example: objectives, budget, performance measures, accountabilities and timescale. It should follow well-defined project management processes, designed to ensure it stays on track to deliver optimum benefit. To have any degree of confidence in the outcome of a project you need to put in place the right people with the right combination of skills. They should work with the best practice processes and tools to make sure the project is properly defined and run. This needs to be in place before the work starts. Managementul proiectelor este considerat un instrument de planificare, coordonare, realizare şi control al activităţilor complexe din proiectele industriale, comerciale, sociale, culturale şi politice moderne.