Synthesis in OM

Stop-watch studies and activity sampling used direct observations of job in operation. However, sometimes, direct observations are not convenient. Under such circumstances, we may estimate a standard time on the basis of previous experience of similar jobs. Time standards arrived at this way are called synthetics.

A work measurement technique for building up the time for a job at a defined level of performance by totaling element times obtained previously from time studies on other jobs containing the elements concerned, from synthetic data.

Steps in Synthesis

Collect full details of job like dimensions, tools, methods, conditions etc.,

Analyze job into constituent elements of activity grouping to enable synthetic elements to be applied if relevant.

Select appropriate basic times from synthetic data for all elements. Select and apply synthetics covering contingent factors. Then verify the details of elemental analysis for job method and condition.

Total the basic times, RA and allowances to establish the standard time for the job.

Analytical Estimating

A work measurement technique where by the time required to carry out elements of a job at a defined level of performance is established from knowledge and practical experience of the elements concerned.

Full details of a job with regards to dimensions, tools, methods and conditions need to be collected. Then the job has to be analyzed into constituent elements into activity grouping to enable synthetic elements to be applied if relevant.

Apply synthetic data and estimate basic times for the remaining elements and contingencies. Apply the appropriate RA as a blanket allowance.

Then verify the details of elemental analysis for job method and conditions and after that sum up basic times, RA and allowances to establish the standard time for the job.

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