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What is the difference in QA and QC

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We're on a big quality and process control/documentation kick at work (which is a good thing) and I've seen lots of emails about QA and QC. Unfortunately I can't get a good definition of the difference in QA and QC from anyone at work.

The way I understand it is that QC is the checks which are run. Say we make widgets. QC would be measuing random widgets, checking the color on them, making sure they're the right hardness, etc.

QA is the plan for QC. For example, we'll check every 100th widget instead of every 50th. If we get failures, we'll turn the widget machine up to 8 from 7.

Is this about right? Help a lifer out. 😛
 
Quality assurance, or QA for short, refers to planned and systematic production processes that provide confidence in a product's suitability for its intended purpose

Quality control is used in developing systems to ensure products or services are designed and produced to meet or exceed customer requirements.


in English... QA is to make sure the product does what its supposed to do. QC is to make sure the product does what the customer wants it to do.
 
Originally posted by: MagnusTheBrewer
If anyone mentions six sigma, be sure to laugh.
Click to expand...

I am so sick of hearing 'six sigma' it makes me violent.


I always threaten associates on every side of the round table with these words.......

"If I hear one more six sigma, black belt (aka douchebag) say the words 'I think', I will surely kick them in their dynamic duo & tell 'em to grab a broom!"

😀
 
Originally posted by: Bulk Beef
How do you make any money in the widget business? Everybody seems to make them.
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With better QA and QC controls in place, our widget will outlast the competetor and will perform above enduser needs.

 
Originally posted by: Chaotic42
We're on a big quality and process control/documentation kick at work (which is a good thing) and I've seen lots of emails about QA and QC. Unfortunately I can't get a good definition of the difference in QA and QC from anyone at work.

The way I understand it is that QC is the checks which are run. Say we make widgets. QC would be measuing random widgets, checking the color on them, making sure they're the right hardness, etc.

QA is the plan for QC. For example, we'll check every 100th widget instead of every 50th. If we get failures, we'll turn the widget machine up to 8 from 7.

Is this about right? Help a lifer out. 😛
Click to expand...

http://en.wikipedia.org/wiki/Q...versus_quality_control
 
It's pretty self explanatory if you're in a fortune 1000 job, but don't get me wrong, b*tches take advantage of management roles and just sit back to surf e-bay.com

those mother fvckers...

Anyway:

QA: Anything built must meet high standards before being sold.

QC: Anything built must meet high standards within the building process.
 
I've worked in these areas for years, and to me there is no real distinction. I might suggest that people used to older systems that relied almost entirely on testing products used the term, "Quality Control" to mean that process - testing, and not much else. To them, "Quality Assurance" was a newer fancier system that extended beyond the test and (reject or adjust or fix) feedback loop. But to me, which label you use does not matter. The process ought to include a broad range of activities from testing of materials supplied, the process and intermediate "product" through analysis of the testing procedures themselves and their relevance to the end goals, all the way through to relationships with customers (product performance and suitability to purpose, plus supplier performance and product support).

Just my perception. I'm inclined the suspect that people who spend too much time on these distinctions don't get the whole picture.
 
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