The Project Execution Phase is the third phase in the project life cycle. In this phase, you will build the physical project deliverables and present them to your customer for signoff. The Project Execution Phase is usually the longest phase in the project life cycle and it typically consumes the most energy and the most resources. To enable you to monitor and control the project during this phase, you will need to implement a range of management processes. These processes help you to manage time, cost, quality, change, risks and issues. They also help you to manage procurement, customer acceptance and communications.