For more information, see the Reliability and Item Analysis chapter. The term reliability used in industrial statistics denotes a function describing the probability of failure (as a function of time). For a discussion of the concept of reliability as applied to product quality (e.g., in industrial statistics), please refer to the section on Reliability/Failure Time Analysis in the Process Analysis chapter (see also the section Repeatability and Reproducibility in the same chapter and the chapter Survival/Failure Time Analysis ). For a comparison between these two (very different) concepts of reliability, see Reliability .