Gantt system

Gantt system used by Taylor for Industrial Engineering

1. Usefulness of Gantt's system - F.W. Taylor Rajan Kumar

2. Mr. Gantt's system is especially useful during the difficult and delicate period of transition from the slow pace of ordinary day work to the high speed which is the leading characteristic of good management. Mr. Gantt's system enables the workman to go smoothly and with gradually accelerated speed from the slower pace of improved day work to the high speed of the new system .

3. No workman can be expected to do a piece of work the first time as fast as he will later . It should also be recognized that it takes a certain time for men who have worked at the ordinary slow rate of speed to change to high speed. Mr . Gantt's plan can be adapted to meet both of these conditions by allowing the workman to take a longer time to do the job at first and yet earn his bonus; and later compelling him to finish the job in the quickest time in order to get the premium.

4. The higher pressure of the differential rate is the stimulant required by the workman to maintain a high rate of speed and secure high wages while he has the steady swing that belongs to work which is repeated over and over again . When, however, the work is of such variety that each day presents an entirely new task, the pressure of the differential rate is some times too severe.

5. engineering business of considerable variety or engaged in constructing and erecting miscellaneous machinery, it is necessary to employ continuously a number of especially skillful and high-priced mechanics . During off season shift from Regular skilled work to Unskilled work Differential rate of Payment

6. Case study on introduction of Differential rate of wages The first case in which a differential rate was applied during the year 1884, in The Midvale Steel Works Ltd. A standard steel forging, many thousands of which are used each year, had for several years been turned at the rate of from four to five per day under the ordinary system of piece work, 50 cents per piece being the price paid for the work.

7. After analyzing the job, and determining the shortest time required to do each of the elementary operations of which it was composed, and then summing up the total, the writer became convinced that it was possible to turn ten pieces a day. In place of the 50 cent rate, that they had been paid before, the men were given 35 cents per piece when they turned them at the speed of 10 per day; and when they produced less than ten they received only 25 cents per piece.

8. COST OF PRODUCTION PER LATHE PER DAY Man’s Wages Machine Cost Total Cost No of Pieces Produced Cost Per Piece Ordinary System $2.50 $3.37 $5.87 5 $1.17 Differential Rate System $3.50 $3.37 $6.87 10 $0.69 The exceedingly dull times that began in July, 1893 the differential rate on the particular job above referred to was removed, and a straight piece work rate of 25 cents per piece was substituted for it. The result of abandoning the differential proved to be the best possible demonstration of its value . Under straight piece work, the output immediately fell to between six and eight pieces per day