The difference between repeatability and reproduceability is clear
The difference between repeatability and reproduceability is clear. While repeatability and reproduceability both refer to the consistency of multiple measurements of the same thing, the premise is different. Repeatability refers to the consistency of the results obtained from multiple consecutive measurements under the condition that the measurement conditions remain unchanged; reproducibility refers to the consistency between the results of multiple measurements when the measurement conditions are changed.
In practical applications, repeatability and reproduceability need to be used to reflect measurement errors according to different situations. If a process is always measured by the same person with the same instrument, of course repeatability is used to reflect measurement error. If measurements of a process are made by different people using different instruments, reproducibility should be used to reflect measurement error.