time-and-motion study

time-and-motion study, in the evaluation of industrial performance, analysis of the time spent in going through the different motions of a job or series of jobs. Time-and-motion studies were first instituted in offices and factories in the United States in the early 20th century. These studies came to be adopted on a wide scale as a means of improving the methods of work by subdividing the different operations of a job into measurable elements. Such...