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08/16/2012 10:31 AM
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Question?
I use kosu since 1 year, in the first time I take in the calculation of the target kosu only the operators who touch the harness between work station 1 to finish Goods.
After a short time I detected that the efficiency and kosu are not likeable because some indirect labors are took in the calculation of efficiency but not in target kosu because they haven't work stations on the line.
These people who essentially support the line are: (trainer, re-worker, and transporter).
To find the right way I took them in calculation for the target kosu ;
Since I can't chronometer the work of these people I took for each one the same time as the bottleneck
This method has evoked a discussion within the engineering team.
Is there someone who has had such experience?
Rafika
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08/20/2012 12:27 PM
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Rafika,
What is Kosu?
Labor is tricky - with more support the direct labor can decrease, so do not just eliminate the support to save cost. Always evaluate the entire system, and focus on what needs to be done.
And you are right, you cannot time every support step (like, training) that needs to be done. But is still needs to be done. Like it is said, not everything that counts can be counted.
But Re-work is not support of doing something, it is clean up for something not done right - an indicator of not enough support in the first place.
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12/28/2012 12:31 AM
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can you explain what is the meaning of KOSU, is it Cycle Time?
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01/04/2013 10:55 AM
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My understanding is that KOSU is "Minutes per piece" to manufacture. It incorporates cycle time and labor required to manufacture. The use of KOSU has several benefits:
1. It is a very "relate-able" number. Takt time, cycle time, etc, are good, but not clearly understood by most people. If you say "minutes per piece", then people will understand that immediately. My experience was this is most pertinent on a shop floor when discussing with employees.
2. Minutes per piece is a productivity metric. Advanced lean companies will use this on an hourly, or bi-hourly measure of performance to standard. It is useful in tracking and diagnosing misses to standard. Both favorable and unfavorable.
3. It is easy to use KOSU when comparing similar operations around the world that may have different wage rates. Kosu normalizes the manufacturing content of a part.
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01/04/2013 01:12 PM
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I Googled KOSU and found a link to a previous Lean.org thread.
http://www.lean.org/FuseTalk/f...atid=44&threadid=5118
Brian
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