What is the definition of Success in a Project?What is Earned Value Analysis? What is the purpose of Variance analysis?

Earned Value Management

Discuss the following in Essay form using attached references as a guide with at least one citation per discussion point:

Discussion Points:
1. What is the definition of Success in a Project?
2. What is Earned Value Analysis? What is the purpose of Variance analysis?
3. Discuss two of the performance Indices