Hi Jim,
Our inspection process is working well. It is mostly AQL based and we have a QC team that is skilled to handle all required inspections. The issue is strictly on how to avoid 'judgement bias' in the selection of the sample to be inspected.
I was surprised to find elaborate ISO standards on the issue but almost no relevant discussions in forums on this topic.
Paul
Our inspection process is working well. It is mostly AQL based and we have a QC team that is skilled to handle all required inspections. The issue is strictly on how to avoid 'judgement bias' in the selection of the sample to be inspected.
I was surprised to find elaborate ISO standards on the issue but almost no relevant discussions in forums on this topic.
Paul
This is one of those areas where theoretical statistics and actual business practices collide, and the results of the collision are as predictable as the aftermath of a collision between a Sherman tank and a Smart Car. The business side will always win.
I think that most CB auditors, at least the ones I've dealt with, are aware of this and don't make a big deal of it. Sometimes the best we can do is to make a conscientious effort to select a representative sample. The other way to avoid these issues is to push the responsibility back on suppliers, where it belongs. If suppliers have good control over their processes, the need for sampling inspection can be greatly reduced and even eliminated in some cases.