Applied Motion Study
A Collection Method to industrial Preparedness

MOTION STUDY AND TIME STUDY 63 isting methods. It was necessary to dispense with the human element and its attending errors and limitations. We needed devices to record the direction as well as the path or orbits of mo- tions, and to reduce the cost of obtaining all time study and motion study data. These were needed not only from the scientific standpoint, but also from the standpoint of obtaining full co- operation of the mechanics and other workers. Many of these had, as a class, become suspicious of time study taken secretly by those who, they thought, did not know enough about the practical features of the trade to take the time study prop- erly, and could not prove that the times were right after putting them on paper. Here was ab- solute pioneer work to be done in inventing devices that would record times, paths, and direc- tions of motions simultaneously. With the older time study devices there was no way of recording accurately either the unit timed or the controll- ing surrounding conditions. The “ elementary units ” were groups of motions. They were ele- mentary only with relation to the stop-watch, with which it is impossible to record accurately the time of an element of a motion, since it takes