The document discusses Program Evaluation and Review Technique (PERT), which is a project management tool used to schedule, organize, and coordinate tasks within a project. PERT involves analyzing project tasks, estimating the time needed for each, and identifying the minimum time to complete the project. It is used when activity times are uncertain. PERT determines the project duration by calculating expected times using optimistic, realistic, and pessimistic estimates for each task. A network diagram is constructed to show task sequences and relationships.

1. Program Evaluation Review
Technique (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: Best time if everything goes perfectly
• REALISTIC TIME: Most likely time
• PESSIMISTIC TIME: A worst-case situation
B + 4M + 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-