Our product quality is one way we compete. Product quality is degree of freedom from defects. Assuring defect free quality is a complex problem and there is never perfection.
Some defects are functional, such as awkwardness, non-uniformity, distortion, or complexity.
For example, a handle with sharp edges may work every time but it has a functional defect. Other defects include outright failures such as broken parts or atypical noise, and aesthetic defects such as ugliness or uneven paint. Some defects may be intermittent. Some may be sensitive to environment. Some may be sensitive to the way the product is treated or used.