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Work System Design “Work Measurement” Hardianto Iridiastadi, Ph.D.
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Introduction What we have learned… –Identify operation problems and issues –Analyze and evaluate –Propose improvement What next… –Standardize the work –Establish time standards
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Introduction Why standardize times –A “fair day’s work” –Evaluating workload –Basis for improvement & for comparing methods –Methods for control –Capacity –Routing and scheduling –Balancing –Cost estimating, MRP, and other mgt. functions –Performance appraisal and incentives
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Introduction Time study = work measurement –“concerns with determining how much time it should take to complete a unit of work” How to determine standard times –Estimates –Historical records of previous prod. runs –Work measurements Direct time study, predetermined motion time, standard data, and work sampling
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Standard Times Definition –Amount of work that can be produced by a qualified employee when working at a normal pace and effectively utilizing his time when work is not restricted by process limitations –Should be fair to employees and company –Should include “allowance”
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Requirements Purpose –New vs. old job –Modified work –Elemental vs. entire tasks Work methods and conditions –Correct methods –Standardized –Tools, speeds, feeds, lubricants, material, etc.
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Requirements Notify workers –Explain objectives –Seek cooperation –Competent and with adequate experience –Union’s agreement
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Time Study Equipment Stopwatch Electronic stopwatch Time study board Videotape cameras Time study forms PDAs
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Time Study Elements Choosing operator Recording significant information Positioning the observer Dividing operations into elements Required number of cycles –Example 8-1 (NS, p.341)
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Class Activity Watch a video clip Determine time standard for the operation Determine the capacity for the workstation What issues need to be addressed?
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