The Graphical Evaluation and Review Technique (GERT) is a network model developed to deal with more complex modeling situations than can be handled by PERT/CPM. GERT combines signal flowgraph theory, probabilistic networks, PERT/CPM, and decision trees all in a single framework. Its components consist of logical nodes (defined below) and directed arcs (or branches) with two parameters; the probability that a given arc is taken (or "realized") and the distribution function describing the time required by the activity. Evaluation of a GERT network yields the probability of each node being realized and the elapsed time between all nodes.

At this point, it may be useful to compare GERT and PERT/CPM in order to focus on what is different about GERT.

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Project Management Made Easy

Project Management Made Easy

What you need to know about… Project Management Made Easy! Project management consists of more than just a large building project and can encompass small projects as well. No matter what the size of your project, you need to have some sort of project management. How you manage your project has everything to do with its outcome.

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