PERT

program evaluation review technique.

1. P rogram E valuation R eview T echnique ( PERT ) Prepared by : Krishna Kumar

2. Program (Project) Evaluation and Review Technique (PERT): is a project management tool used to schedule, organize, and coordinate tasks within a project. It is basically a method to analyse the tasks involved in completing a given project, especially the time needed to complete each task, and to identify the minimum time needed to complete the total project. What is the PERT ?

3. Objective of the pert To facilitate decision making and To reduce both the time and cost required to complete a project .

4. When we use PERT ? PERT is used when activity times are uncertain. Determine the duration of the project . Decision making under risk (“ P ” for probabilistic )

5. Critical Path is helpful to determine ES – Earliest Start time EF - Earliest Finish time LS – Late Start time LF - Late Finish time Conti….

6. Determine the duration of the project OPTIMISTIC TIME : B est time if everything goes perfectly REALISTIC TIME: M ost likely time P ESSIMISTIC TIME: A worst-case situation B + 4 M + P Expected Time = ------------------- 6

7. Determine the duration of the project Example: For excavation activity let : B = 12 days M = 18 days P = 60 What is the expected time for this activity? Sol : 12 + 4 (18) + 60 Expected Time = ------------------------- 6 = 24 days

8. Pert Process Specify activities Sequence of the activities. Network diagram. Estimate the time. Critical path. PERT PROCESS

9. Activity sequence information A network diagram can be drawn showing the sequence of the serial and parallel activities. Each activity represents: A part in the network, The arrows represent: The relation between activities . Construct a network diagram

10. • Simple to understand and use • Identify the activities that need closer attention (critical ) • Determine the flexibility available with activities • Show potential risk with activities (PERT) • Help to set priorities among activities and resource allocation as per priority Advantages-

11. Thank you