Project Cost Management in PMP

I would like to start a new topic on Project Cost Management. Project Cost Management is one of the major topic in PMP and it consists of the following 3 major topics:

• Cost Estimation
  It is developing an approimation of the costs of the resources needed to complete all project activities.
  
  
• Cost Budgeting
  It is aggregating the estimated costs of individual activities or establish a cost baseline.
  
  
• Cost Control
  It is infuencing the factors that create cost variances and control changes to the project schedule.