What is a CPM PERT network?
PERT and CPM are the two network-based project management techniques, which exhibit the flow and sequence of the activities and events. Program (Project) Management and Review Technique (PERT) is appropriate for the projects where the time needed to complete different activities are not known.
What is PERT and CPM method?
PERT and CPM are techniques of project management useful in the basic managerial functions of planning, scheduling and control. PERT stands for “Programme Evaluation & Review Technique” and CPM are the abbreviation for “Critical Path Method”. It is commonly used in research and development projects.
What is difference between PERT and CPM P?
The main difference between PERT and CPM is that PERT stands for Program Evaluation and Review Technique, and CPM stands for Critical Path Method. PERT manages unpredictable activities, whereas CPM manages predictable activities. PERT is related to the events, but CPM is related to the activities.
Why are dummy activities used in a CPM PERT network?
The purpose of dummy activity is to maintain the logic of a network diagram. Since no real activity takes place between two such events, the dummy activity does not consume any resources. It also does not consume time duration. Dummy activities are used only in case of absolute necessity.
Why do we use CPM?
The critical path method (CPM) is a technique where you identify tasks that are necessary for project completion and determine scheduling flexibilities. It helps you break down complex projects into individual tasks and gain a better understanding of the project’s flexibility.
Can PERT and CPM be used interchangeably?
PERT (Program Evaluation Review Technique) is a planning and control tool used for defining and controlling the tasks necessary to complete a project. PERT charts and Critical Path Method (CPM) charts are often used interchangeably; the only difference is how task times are computed.
Where is PERT and CPM used?
A deterministic model is used in CPM. While PERT uses a probabilistic model. PERT is generally used in Research and development projects. CPM is generally used in a Construction project, Projects of repeatable nature like residential construction, rollouts, etc.
Is CPM devised by US Navy?
First developed by the United States Navy in 1958, it is commonly used in conjunction with the critical path method (CPM) that was introduced in 1957.
What is activity and event in CPM?
An event is a specific instant of time, which makes the start or end of an activity. Event consumes neither time nor resources. Activity. An activity is the actual performance of the task and requires time and resources for its completion. It is the work required to complete a specific task.
Can dummy activity be on critical path?
Features of Dummy Activity
A dummy activity can be either critical or non-critical. It becomes a critical activity when the earlier start time and the latest finish time are equal.
What is the crashing technique used for?
Crashing is a schedule compression technique used to reduce or shorten the project schedule. This option has various constraints such as the securing of the budget to add the resources, and the availability of the resources.
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