Applied Motion Study
A Collection Method to industrial Preparedness

UNITS, METHODS AND DEVICES 27 that the instruction-card function consists merely of the work of writing out the instruction cards. This is the name of the function in general, and it may be performed by several men in different lines and of varying capacity in the instruction- card function; that is to say, the department or function may be divided into measurable units or subfunctions. It is the duty of the instruction- card function to work out in detail and to devise and construct an instruction card describing the method of least waste for each element of the route sheets which are made from the route charts. The instruction-card department fur- nishes in the greatest possible detail such direc- tions as will show two different classes of men their duties, namely: (a) the worker, who must know how to perform the particular work shown on the instruction card; and (6) the functional foremen in the performing department, who must know exactly what they are to see that the worker does perform, and exactly what they are to teach the worker in order that he may so perform his work as to conform to the instruction card. Time and Cost.— After the worker has per- formed his work, a return of the time that it took