degree to which a set of inherent characteristics fulfils requirements
NOTE 1 The term "quality" can be used with adjectives such as poor, good or excellent.
NOTE 2 "Inherent", as opposed to "assigned", means existing in something, especially as a permanent characteristic.
[ISO 9000:2005, 3.1.1]
management system to direct and control an organization with regard to quality
[ISO 9000:2005, 3.2.3]
set of interrelated or interacting activities which transforms inputs into outputs
NOTE 1 Inputs to a process are generally outputs of other processes.
NOTE 2 Processes in an organization are generally planned and carried out under controlled conditions to add value.
NOTE 3 A process where the conformity of the resulting product cannot be readily or economically verified is frequently referred to as a "special process".
[ISO 9000:2005, 3.4.1]