Answers:
PERT
Some key points of PERT are as follows:
- PERT was developed in connection with an Research and Development (R&D) work. Therefore, it had to cope with the uncertainties that are associated with R&D activities. In PERT, the total project duration is regarded as a random variable. Therefore, associated probabilities are calculated in order to characterize it.
- It is an event-oriented network as in the analysis of a network, emphasis is given on the important stages of completion of a task rather than the activities required to be performed to reach a particular event or task.
CPM
- CPM was developed in connection with a construction project, which consisted of routine tasks whose resource requirements and duration were known with certainty. Therefore, it is basically deterministic.
- CPM is suitable for establishing a trade-off for optimum balancing between schedule time and cost of the project.
- CPM is used for projects involving activities of repetitive nature.