The definition of Quality as consensually agreed by 2005 (ISO 9000)

"The degree to which a set of inherent characteristics fulfils requirements"

• Quality can be used with adjectives such as poor, good, excellent...


• 'Inherent', as opposed to 'assigned', means existing in something, especially as a permanent characteristic...


• 'Requirement': A need or expectation that is stated, generally implied or obligatory
• Stated means usually explicitly in a document.


• Generally implied means that it is custom or common practice for the organization, its customers and other interested parties.


• Requirement is the expression in the content of a document conveying criteria to be fulfilled if compliance with the document is to be claimed and from which no deviation is permitted.