Difference Between PERT and CPM?

Agilemania
Dec 22nd 2022

In project management, principles, tools, and techniques are used to plan, execute, and manage projects. As a result, project managers, team leaders, and other leaders can manage work while supporting team collaboration. Every management must implement PERT and CPM to accomplish the end goal of a project on time. A project's progress and series of actions can be displayed with these techniques.

What is PERT?

PERT full form is Project Evaluation and Review Technique. In projects where the time required to complete different activities is unknown, PERT is an appropriate method. PERT is mainly used for scheduling, organizing, and integrating tasks in a project. In addition to providing the blueprint for a project, it is an effective tool for evaluating a project.

What is CPM?

CPM full form is the Critical Path Method. CPM is used when the time needed to complete a task is already known. A project's approximate completion time is based on this tool. In project management, the critical path provides the maximum time for project completion in the shortest possible time.

PERT v/s CPM

Based On	PERT	CPM
Full Form	Project Evaluation and Review Technique	Critical Path Method
Meaning	PERT is a prominent project management approach used when the time needed to complete a project is unknown.	CPM is a statistical technique that assigns a beginning and ending time to a project.
Model Type	probabilistic model	deterministic model
Major Focus	It is primarily concerned with time since attaining a time objective or estimating a percentage of completion is more significant.	Emphasizes the time-cost trade-off since lowering costs is much more essential.
Nature	It has a Non-repetitive personality.	It has a repetitive nature to the job.
Orientation type	Event-oriented technique	Activity-oriented technique
Suitability	It is appropriate for research and development applications.	It is appropriate for building tasks.

Advantages Of PERT

Planning For Large Projects
Visibility of Critical Path
Analysis of Activities
Coordinating Ability
The What-if -Analysis

Disadvantages Of PERT

Time-Focused Method
Subjective Analysis
Inaccuracy due to Prediction
Expensive
Other Issues

Advantages of CPM

Establishes a framework for long-term project collaboration and planning.
Recognizes critical activities
Project management is simple to plan, schedule, and control.
Enhance productivity
Administers the required resources

Disadvantages Of CPM

It is tough to understand for newcomers.
Software is costly.
CPM structure might be time-consuming at times.
It cannot regulate or shape the schedule of a project participant.

Conclusion

The distinction between these two project management tools is becoming increasingly blurred as the methodologies mix over time. As a result, in most projects, they are employed as a single project. The fundamental difference between PERT and CPM is that the former places a premium on time, implying that if time is saved, costs would be saved as well. However, with the latter, cost optimization is the most critical factor.

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Difference Between PERT and CPM?

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