Common Project Phases – ExeCute and Control

Once the plan has been developed and approved, the team can begin work. 
This is the execution phase, but it also includes control, because, while 
the plan is being implemented, progress is monitored to ensure that the 
work is progressing according to the plan. When deviations from the plan 
occur, corrective action is taken to get the project back on track, or, 
if this is not possible, the plan is changed and approved, and the revised 
plan becomes the new baseline against which progress is tracked.