Keep Matching Control To Risk
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A lot of people miss out on the opportunity to reduce the control over processes based on the sound data they have collected. Let's consider goods inwards for example and the checking of documents, especially certificates.
You might start off checking every one as you know there are always issues with your suppliers. However, as you discuss the issues with them some respond and their performance improves. ( Clearly, if you are not talking to them then not much is going to change so you may have to take that on board first ).
The risk is that you still check every one because 'that's what we have always done'. You are quite at liberty, based on the hard evidence of your data, to lower the rate of the checking to say 50% on the good ones and monitor to ensure all is still under control. PDCA in operation even! If performance starts to deteriorate, then revert back to 100% and so on.
You could end up with some who never give you a problem so you could reduce the check further to 10% or even zero, all of which releases resources to work on those who, let's say, need a bit more encouragement. The thing to remember is that you are taking decisions backed by robust data you have collected and not on a whim. If you are not already adopting this approach, why not give it a try?
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