PERT deals with unpredictable activities , but CPM deals with predictable activities. 9. PERT is used where the nature of the job is non-repetitive. In contrast to, CPM involves the job of repetitive nature.
What is the basic difference between PERT and CPM quizlet?
What is the basic difference between PERT and CPM? The basic difference between PERT and CPM is that PERT requires three time estimates of activity completion time , whereas CPM uses only a single estimate. The ES of an activity that has only one predecessor is simply the EF of that predecessor.
What is the main difference between CPM and PERT?
| Abbreviation | PERT – Project Evaluation and Review Technique CPM – Critical Path Method | Focus | PERT – The main focus of PERT is to minimise the time required for completion of the project CPM – The main focus of CPM is on a trade-off between cost and time, with a major emphasis on cost-cutting. | Orientation type |
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What is the difference between critical path method and PERT?
The main difference between PERT and Critical Path is knowing how long a given task will take . With PERT, task durations are variable, hence the need to predict time using a model. Critical Path is more useful for projects where task length is easy to predict, such as a construction project or a large conference.
What is a PERT CPM chart?
A PERT chart, sometimes called a PERT diagram, is a project management tool used to schedule, organize and coordinate tasks within a project . ... A similar methodology, the critical path method (CPM) was developed for project management in the private sector at about the same time.
What is the full form of PERT and CPM?
PERT is an abbreviation of the Program Evaluation and Review Technique . CPM is an abbreviation of the Critical Path Method.
Which is not one of the limitations of PERT CPM?
Which of the following is NOT a limitation of PERT? Only one time estimate can be used for each activity . Slack is the amount of time an activity can be delayed without delaying the entire project. PERT, but not CPM, has the ability to consider the precedence relationships in a project.
What are the phases of project management?
- Project Initiation.
- Project Planning.
- Project Execution.
- Project Monitoring and Controlling.
- Project Closing.
What are the three phases involved in the management of a large project?
- Planning.
- Scheduling.
- Controlling.
What is the formula for PERT?
PERT calculates a weighted average as the PERT estimate by using the formula : Pert Estimate = (Optimistic + (4 X Most Likely) + Pessimistic)/6.
What are the advantage of PERT and CPM?
The techniques of PERT and CPM help greatly in completing the various jobs on schedule . They minimise production delays, interruptions and conflicts. These techniques are very helpful in coordinating various jobs of the total project and thereby expedite and achieve completion of project on time.
Where is PERT and CPM used?
The use of project planning and control techniques based on PERT or CPM are now common in all types of civil engineering and construction work , as well as for large developmental projects such as the manufacture of aircraft, missiles, space vehicles, and large mainframe computer systems.
Is PERT or CPM better?
PERT technique is best suited for a high precision time estimate, whereas CPM is appropriate for a reasonable time estimate. PERT deals with unpredictable activities, but CPM deals with predictable activities. PERT is used where the nature of the job is non-repetitive.
How do I create a PERT CPM?
- Step 1: List out your project milestones and tasks. ...
- Step 2: Identify the sequence of those tasks. ...
- Step 3: Determine the time criteria for your tasks. ...
- Step 4: Draw up your PERT diagram. ...
- Step 5: Draw out your critical path. ...
- Step 6: Update your PERT chart as needed.
What is a PERT diagram?
A PERT chart uses circles or rectangles called nodes to represent project events or milestones . These nodes are linked by vectors, or lines, that represent various tasks. A PERT chart allows managers to evaluate the time and resources necessary to manage a project.
What is the full form of CPM?
CPM stands for cost per thousand impressions and is typically used in measuring how many thousands of people your advertising or marketing piece has (hopefully!) left an impression on. CPM is typically used in campaigns that are designed to be seen by thousands of thousands of people.
