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Time and motion study

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A time and motion study (or time-motion study) is a business efficiency technique combining the Time Study work of Frederick Winslow Taylor with the Motion Study work of Frank and Lillian Gilbreth (best known through the biographical 1950 film and book Cheaper by the Dozen). It is a major part of Scientific management (Taylorism).
A time and motion study would be used to reduce the number of motions in performing a task in order to increase productivity. The best known experiment involved bricklaying. Through carefully scrutinising a bricklayer's job, Frank Gilbreth reduced the number of motions in laying a brick from 18 to about 5. Hence the bricklayer both increased productivity and decreased fatigue.
The Gilbreths developed what they called therbligs ("therblig" being "Gilbreth" spelled backwards, with a slight variation), a classification scheme comprising 17 basic hand motions.

See also
Human factors
Ergonomics

extracted from http://en.wikipedia.org/wiki/Time_and_motion_studies

SOFTWARE FOR TIME STUDY
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Encyclopedia
time and motion study
time and motion study, analysis of the operations required to produce a manufactured article in a factory, with the aim of increasing efficiency. Each operation is studied minutely and analyzed in order to eliminate unnecessary motions and thus reduce production time and raise output, which increases productivity. The first effort at time study was made by F. W. Taylor in the 1880s. Early in the 20th cent., Frank and Lillian Gilbreth developed a more systematic and sophisticated method of time and motion study for industry, taking into account the limits of human physical and mental capacity and the importance of a good physical environment.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved.

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