June 2006
Beginner
793 pages
20h 59m
English
Content preview from Quantitative Techniques: Theory and Problems
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DISTINCTION BETWEEN CPM AND PERT
CPM and PERT differ in the various respects:
| Basis of Distinction | CPM | PERT |
|---|---|---|
| 1. Orientation | CPM is activity oriented i.e. CPM network is built on the basis of activities. | PERT is event oriented. |
| 2. Nature of Model | CPM is a deterministic model i.e. it does not take into account the uncertainties involved in the estimation of time for execution of a job or an activity. | PERT is a probabilistic model i.e. It takes into account uncertainties involved in the estimation of time of a job or an activity. It uses three estimates of the activity time – optimistic, pessimistic and most likely. Thus, the expected duration of each activity is probabilitistic and expected duration indicates that there is 50% probability ... |
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