A definition of quality is part on the core vocabulary for quality management which can be located in ISO 9000:2015 and applies to all ISO quality management expectations, which include ISO 9001. It suggests that quality is definitely the “degree to which a list of inherent properties [or distinguishing features] https://www.nathanlabsadvisory.com/blog/nathan/achieve-pci-dss-compliance-in-the-usa-secure-your-business-today/