This ppt is based on critical path method in project management system. How to take critical decision during project management.

1. NAME : JUNAID AHMED
CLASS NO: 38
DATE: 20/09/2020
SEMESTER: 06
PRESENTATION TOPIC: CPM ( CRITICAL PATH METHOD )

2. CRITICAL PATH METOD
• Critical path In project management, a critical path is the sequence of dependent
tasks that form the longest duration, allowing you to determine the most efficient
timeline possible to complete a project.
• Critical path method is a algorithm to find the project evaluation time.
• Critical path method is based on mathematical calculations and it is used for
scheduling project activities.

3. CONT…
• This method was first introduced in 1950s as a joint venture between Remington
Rand Corporation and DuPont Corporation.
• The initial critical path method was used for managing plant maintenance
projects.
• The critical path method is defined in the Project Management Body of Knowlede
(PMBOK) as follows:
• The Critical Path Method is the sequence of scheduled activities that determines
the duration of the project.

4. STEP TO BE FOLLOWED IN CPM
• 1) Draw network.
• 2) Calculate time scheduled for each activity.
• EST (Earliest Start Time)
• LFT(Latest Finish Time)
• 3) Calculate EFT and LST ( Earliest Finish Time and Latest Start Time )
• EFT=EST + Time
• LST=LFT - Time

5. CONT…
• Early Start – The earliest time that an activity can start according to the logical
constraints.
Early Finish – The earliest time that an activity can finish according to logical
constraints.
Late Start – The latest time that an activity can start according to logical constraints
and without affecting the overall project duration.
• Late Finish – The latest time that an activity can finish according to logical constraints
and without affecting the overall project duration.

6. CONT…
• 4) Calculate Float.
• Total Float=LST – EST or LFT – EFT
• 5) Identify critical activities and find critical path.

7. EXAMPLE OF CPM

8. STEP 1

9. STEP 2

10. CONT…

11. CONT…

12. CONT…

13. STEP 3

14. STEP 4

15. STEP 5

16. ADVANTAGES
• The CPM makes it easier for the project managers to build a team and create
human network for efficient handling of a multi-tasked project.
• The Critical Path Method binds the entire team together and motivates the
human resources in timely completion of the tasks in a project

17. DISADVANTAGES
• CPM can become ineffective and difficult to manage if it is not well-defined and
stable.
• In a big project, a CPM can become extremely complicated and difficult to fathom
for the new recruits to the project team.