IE228Week6 - WORK SAMPLING Lecturer: S.U.Sekiner Source:...

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WORK SAMPLING Lecturer: S.U.Seçkiner Source: Motion and Time Study Design and Measurement of Work
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Key points Work Sampling is a method for analyzing work by taking a large number of observations at random times. Use work sampling to: Determine machine utilization Determine allowances Establish time standards Use as many observations as practical Take observations at random times over two or more weeks.
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Work sampling is a technique used to investigate the proportions of total time devoted to the various activities that constitute a job or work situation. The results of work sampling are effective for determining machine and personnel utilization, allowances applicable to the job and production standards. Work sampling frequently provides the same information faster and considerably less cost than time study.
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In conducting work sampling studies; Large number of observations at random intervals, The ratio of observations of a given activity to the total observations approximates the percentage of time that the process is in that state of activity.
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Work sampling was first applied in the British textile industry Later, technique was brought to the United States. The accuracy of the data determined by work sampling depends on the number of observations and the period over which the random observations are taken
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Advantages 1. It does not require continuous observation by an analyst over a long period of time 2. Clerical time is diminished, 3. The total work-hours expended by the analyst are usually much fewer, 4. The operator is not subjected to long period stopwatch observations. 5. Crew operations can be readily studied by a single analyst.
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Work sampling has three main uses; 1. Activity and delay sampling (to measure the activities and delays of workers or machines. Ex:percentage of working
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IE228Week6 - WORK SAMPLING Lecturer: S.U.Sekiner Source:...

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