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PERT - Program Evaluation and Review Technique
The Program Evaluation and Review Technique commonly abbreviated PERT is a model for project management invented by United States
Department of Defense's US Navy Special Projects Office in 1958 as part of the Polaris mobile submarine launch project. This project
was a direct response to the Sputnik crisis.
PERT is basically a method for analyzing the tasks involved in completing a given project, especially the time needed to complete each
task, and identifying the minimum time needed to complete the total project.
This project model was the first of its kind, a revival for scientific management, founded in fordism and taylorism. Though every company
now has their own "project model" of some kind, they all resemble PERT in some respect. Only DuPont corporations critical path method
was invented at roughly the same time as PERT.
The most famous part of PERT is the "PERT Networks", charts of timelines that interconnect. PERT is intended for very large-scale,
one-time, complex, non-routine projects.
Gantt chart
A Gantt chart is a popular type of bar chart, showing the interrelationships of how projects, schedules, and other time-related systems
progress over time.
In project management, a Gantt22 chart can show when the project terminal elements start end finish, summary elements (shown) or terminal
element dependencies (not shown).
It was developed by Henry L. Gantt by 1910 (see "Work, Wages and Profit" by H. L. Gantt, published by The Engineering Magazine, NY, 1910).
Gantt charts appear in several project management software packages, such as Microsoft Project or Mr. Project.
Related Topics
Earned value management
Risk Management in Project management
Scheduling & Project Scheduling
Project Management - Critical path and Critical chain
Project Definiton | What is a Project
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