The PERT chart was developed by the US Navy to show a project's dependencies. PERT stands for Program Evaluation Review Technique. In the PMI, PERT is also a formula (tool) used to estimate likely project duration according to the theory D = (P + 4M + O) / 6 where D = Duration, P = Pessimistic duration, M = Median/Modest duration and O = Optimistic duration.)

Contains 10 processes:

1. Monitor and Control Project Work (Integration)
2. Perform Integrated Change Control (Integration)
3. Verify Scope (Scope)
4. Control Scope (Scope)
5. Control Schedule (Time)
6. Control Costs (Cost)
7. Perform Quality Control (Quality)
8. Report Performance (Communication)
9. Monitor and Control Risks (Risk)
10. Administer Procurements (Procurement)

Contains 20 Processes:

1. Develop Project Management Plan (Integration)
2. Collect Requirements (Scope)
3. Define Scope (Scope)
4. Create Work Breakdown Structure (Scope)
5. Define Activities (Time)
6. Sequence Activities (Time)
7. Estimate Activity Resources (Time)
8. Estimate Activity Durations (Time)
9. Develop Schedule (Time)
10. Estimate Costs (Cost)
11. Determine Budget (Cost)
12. Plan Quality (Quality)
13. Develop Human Resource Plan (Human Resource)