Explain how earned value management helps you monitor project performance and forecast future cost and schedule information. What do you need to do to use earned value management?What is the difference between scope validation and scope control? Why are both important to project success?

Explain how earned value management helps you monitor project performance and forecast future cost and schedule information. What do you need to do to use earned value management?What is the difference between scope validation and scope control? Why are both important to project success?