QS Study

Characteristics of Program Evaluation Review Technique (PERT)

PERT stands for Program Evaluation Review Technique. PERT is a project management tool that provides a graphical representation of projects timeline. It is a method to calculate and estimate the time required to complete a task within deadlines. The major objective of PERT is to decrease the cost and time needed to complete a project.

PERT, or Program Evaluation Review Technique, was developed by the United States Navy for the Polaris submarine missile program in the 1950s. PERT charts allow the tasks in a particular project to be analyzed, with particular attention to the time required to complete each task, and the minimum time required to finish the entire project.

  1. PERT uses event oriented Network.
  2. Estimate of time for activities is not so accurate and definite.
  3. It is used mostly in research and development projects, particularly projects of nonrepetitive nature.
  4. The probabilistic model concept is used.
  5. PERT is basically a tool for planning.
  6. In PERT, it is assumed that cost varies directly with time. Attention is therefore given to minimize the time so that minimum cost results. Thus in PERT, time is the controlling factor.