Time and motion study

American mechanical engineer (1856–1915)

American psychologist and industrial engineer (1878–1972)

American industrial engineer (1868-1924)

business efficiency technique

Therbligs are elemental motions used in the study of workplace motion economy. A workplace task is analyzed by recording each of the therblig units for a process, with the results used for optimization of manual labour by eliminating unneeded movements. Eighteen therbligs have been defined.

Procedures for analyzing work processes and determining planned and predefined times

biographical novel written by Frank Bunker Gilbreth, Jr. and Ernestine Gilbreth Carey