Quality Control
- Checking goods as you make them or when they arrive from suppliers to see if anything is wrong with them. It's often done by specially trained quality inspectors.
- Assumes that errors are unavoidable.
- Detects errors and puts them right.
- Quality control inspectors check other people's work, and are responsible for quality.
Quality assurance
Introducing measures into the production process to try to ensure things don't go wrong in the first place. It assumes you can prevent errors from being made in the first place, rather than eliminating faulty goods once they've been made.
- Assumes that errors are avoidable.
- Prevents errors and aims to get it right first time.
- Employees check their own work. Workers are responsible for passing on good quality work to the next stage of the production process.
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