Project management have the right to be construed as a systematic means of planning, scheduling, executing, monitoring, managing the different facets of the project, so as to attain the goal made at the time of project formulation. PERT and also CPM room the two network-based project monitoring techniques, which exhibition the flow and also sequence of the activities and events. Program (Project) Management and Review method (PERT) is appropriate for the tasks where the time needed to finish different activities are no known.

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On the other hand, the vital Path method or CPM is apt because that the tasks which are recurring in nature.

The 2 scheduling techniques use a common strategy for designing the network and also for ascertaining its critical path. Castle are used in the effective completion that a project and also hence supplied in conjunction v each other. Nevertheless, the fact is that CPM is different from PERT in a way that the last concentrates on time if the previous stresses ~ above the time-cost trade-off. In the very same manner, there are plenty of differences in between PERT and also CPM, i m sorry we space going to talk about in this article.

Content: PERT Vs CPM

Comparison Chart

Basis because that ComparisonPERTCPM
MeaningPERT is a project management technique, offered to manage uncertain tasks of a project.CPM is a statistical method of project administration that manages fine defined activities of a project.
What is it?A an approach of planning and control the time.A technique to regulate cost and also time.
EvolutionEvolved as research & advancement projectEvolved as building project
ModelProbabilistic ModelDeterministic Model
Focuses onTimeTime-cost trade-off
EstimatesThree time estimatesOne time estimate
Appropriate forHigh precision time estimateReasonable time estimate
Management the Unpredictable ActivitiesPredictable activities
Nature of jobsNon-repetitive natureRepetitive nature
Critical and Non-critical activitiesNo differentiationDifferentiated
Suitable forResearch and advancement ProjectNon-research projects like civil construction, ship structure etc.
Crashing conceptNot ApplicableApplicable

Definition that PERT

PERT is an acronym for regimen (Project) Evaluation and also Review Technique, in which planning, scheduling, organizing, coordinating and controlling uncertain activities take place. The technique studies and represents the jobs undertaken to complete a project, to recognize the least time for completing a task and also the minimum time compelled to finish the totality project. It was arisen in the so late 1950s. That is aimed to alleviate the time and also cost that the project.

PERT supplies time as a change which represents the planned source application along with performance specification. In this technique, very first of all, the project is split into activities and events. After ~ that proper sequence is ascertained, and a network is constructed. After the time needed in each activity is calculated and the vital path (longest route connecting all the events) is determined.

Definition that CPM

Developed in the late 1950s, an important Path technique or CPM is one algorithm provided for planning, scheduling, coordination and also control of tasks in a project. Here, it is assumed that the activity duration is fixed and certain. CPM is provided to compute the earliest and also latest feasible start time because that each activity.

The procedure differentiates the an important and non-critical activities to alleviate the time and avoid the queue generation in the process. The factor for the to know of vital activities is that, if any activity is delayed, that will cause the whole process to suffer. The is why the is called as an important Path Method.

In this method, an initial of all, a list is all set consisting of all the activities needed to finish a project, followed by the computation of time required to finish each activity. After that, the dependency between the activities is determined. Here, ‘path’ is defined as a sequence of tasks in a network. The an essential path is the route with the highest length.

Key Differences in between PERT and CPM

The most important differences in between PERT and also CPM are provided below:

PERT is a project management technique, whereby planning, scheduling, organising, coordinating and controlling uncertain tasks are done. CPM is a statistical method of project management in which planning, scheduling, organising, coordination and control the well-defined tasks take place.PERT is a technique of planning and control that time. Unequal CPM, i beg your pardon is a method to manage costs and time.While PERT is developed as a research and advance project, CPM evolved as a construction project.PERT is collection according to events while CPM is aligned towards activities.A deterministic version is offered in CPM. Whereas PERT offers a probabilistic model.There space three times estimates in PERT, i.e. Hopeful time (to), most likely time ™, cynical time (tp). ~ above the various other hand, there is just one estimate in CPM.PERT technique is best suited for a high precision time estimate, whereas CPM is appropriate for a reasonable time estimate.PERT faces unpredictable activities, but CPM faces predictable activities.PERT is supplied where the nature that the project is non-repetitive. In contrast to, CPM involves the task of recurring nature.There is a demarcation between critical and non-critical tasks in CPM, i m sorry is not in the case of PERT.PERT is best for research study and advance projects, but CPM is because that non-research tasks like building and construction projects.Crashing is a compression an approach applied come CPM, to shorten the project duration, together with the least extr cost. The crashing ide is no applicable to PERT.

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Video: PERT Vs CPM


The difference between these 2 project administration tools is acquiring blurred as the techniques are linked with the i of time. The is why, in most projects, they space being supplied as a solitary project. The primary point that distinguishes PERT native CPM is the the former gives the too much importance that time, i.e. If the moment is minimized, in turn the cost will additionally be reduced. However, cost optimization is the simple element, in the latter.