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Capacity

Capacity. Capacity – Is the maximum amount of work that an organization is capable of completing in a given period of time. How to determine capacity requirement ?. Understand the work load Determine the unit of work Identify service levels for each workload.

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Capacity

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  1. Capacity • Capacity – Is the maximum amount of work that an organization is capable of completing in a given period of time .

  2. How to determine capacity requirement ? • Understand the work load • Determine the unit of work • Identify service levels for each workload .

  3. Capacity of a sewing line is commonly measured in terms of number of garments produced per shift , per hour or per month. • But as garments do not have standardized work content , pcs per hour is not the correct representation of capacity . • Capacity of one sewing operator is 60 minutes per hour maximum .

  4. Efficiency • It is primarily a measure of the effectiveness of the manager and supervisor and as such is best applied to sections / departments / factories and not the individual operators .

  5. Efficiency = (SMV earned on standard / attended time ) x 100 • It is usually calculated for a line and not really relevant to the individual unless incentives are paid on efficiency and not performance .

  6. Efficiency or line utilization is calculated by “minutes produced” / “minutes attended” expressed as percentage.

  7. In sewing line of 20 operators a style of 20 SMV is produced in 8 hour shift . If the average daily production of the style is 400 pcs / shift then the line utilization or line efficiency can be calculated as under :

  8. Minutes utilized = SMV x pcs / shift = 20x400 • Minutes attended= number of operator X number of minutes per shift = 20 x 480 = 9600 • So , the line utilization or line efficiency is8000 x 100 / 9600 = 83.33% • This measure is also called as balance efficiency .

  9. SAM or SMV • SAM – Standard Allowed Minutes • SMV – Standard minute Value • SAM and SMV are considered to be the same . • SMV earned is the measure of work done by operator . It is calculated from output from an operation generated in attended minutes and SMV of the operation. • SMV earned = ( SMV x output in number of units )

  10. It is usually calculated for individuals as well as for a line . • As it is needed for individuals for incentive payment calculation and performance and needed for lines for efficiency calculation . • Also sometimes aggregated for departments and factories to get factory efficiency .

  11. Lost time or lost output Reasons for time loss or output loss : • Poor balancing • No or improper feeding of the cut parts . • Non availability of accessories ( thread , zipper , cord etc ) • Shifting of operators resulting start up loss . • Machine breakdown • Loss due to repairs

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