Common Mistakes 6 of 6
Quality Control Mistakes
Quality-control mistakes allow an incorrect or defective goodie to pass, or reject acceptable work using an undefined standard. Inspection should be consistent, documented, and connected to the order and production method.
Common quality-control mistakes
| Mistake | Risk | Better practice |
|---|---|---|
| Inspecting only the digital PNG | Physical color, placement, cure, adhesion, and product defects are missed | Inspect the finished goodie |
| Using no approved reference | Pass or fail becomes subjective | Use the order, proof, specification, and defined tolerance |
| Checking only the first or last unit | Variation within the order may be missed | Use a sampling or full-inspection plan appropriate to the job |
| Inspecting before finishing is complete | The final appearance or durability has not stabilized | Inspect at the correct process stage |
| Using unsuitable lighting | Color shifts, surface defects, or engraving contrast may be misjudged | Use consistent inspection conditions |
| Mixing passed, rejected, and rework units | A failed product can enter fulfillment | Physically identify and separate each disposition |
| Failing to record defects | Recurring causes remain hidden | Track defect type, cause, correction, and affected quantity |
A useful classification rule
Design
The artwork decision is unsuitable.
File
The delivered digital asset is incorrect.
Material
The physical input is unsuitable or inconsistent.
Machine
Equipment condition or configuration is incorrect.
Production
The job was executed incorrectly.
Quality control
The defect was not detected or dispositioned correctly.
Classifying the mistake by its actual source makes the corrective action more effective.