BACHELOR OF BUSINESS ADMINISTRATION

Detailed explanation-1: -PERT or program evaluation and review technique, is an event oriented method of network planning. In it, the emphasis is focused on the start and completion of events rather than on activities. In the PERT network, the event falls in logical sequence.

Detailed explanation-2: -Following are the basic differences between PERT and CPM: Program Evaluation Review Technique is event-oriented, while CPM is activity oriented. Activity times in CPM technique is related to costs, but this is not the case with PERT as it is event oriented.

Detailed explanation-3: -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.

Detailed explanation-4: -Activity-oriented approaches lay emphasis on the understanding of dis-turbances and unforeseen tasks and to the analysis of user or operator responses.

Detailed explanation-5: -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.