Two words. Used interchangeably every day. Mean completely different things.
Accurate and Precise are NOT the same.
Confusing them is one of the most expensive mistakes in quality management.
Here’s the difference — explained with a target:

🎯 Precise but NOT Accurate All your shots land in the same spot — but it’s the wrong spot. Your process is consistent, but it’s consistently missing the target.

→ Fix: Calibrate your instrument. Shift the process mean back to target.

🎯 Accurate but NOT Precise Your shots are scattered — but they average out near the centre. Your process is hitting the right average, but with too much variation.

→ Fix: Investigate and eliminate the sources of variation.

🎯 Precise AND Accurate Every shot lands on target. Every time. This is the only acceptable standard in quality management.

→ This is what we build toward.

Why does this matter in real operations?

If your measurement system is precise but not accurate — you are making decisions based on data that is consistently wrong.

Calibrated in the wrong direction.
If it is accurate but not precise — your process is out of control. You cannot predict the next result.

Both conditions will cost you: in defects, in rework, in customer complaints, in lost trust.

Confusing these two words means you apply the wrong fix — and the problem gets worse, not better.

The goal is always: on target, every time, with minimum variation.

💬 Which of these three scenarios does your current process most resemble?
📩 DM me “MSA” for a free Measurement System review for your process.

hashtag#AccuracyVsPrecision hashtag#MSA hashtag#MeasurementSystemAnalysis hashtag#QualityManagement hashtag#SixSigma hashtag#Lean hashtag#GaugeRR hashtag#OperationalExcellence hashtag#Consulting