1. ISO 8402: Quality - Vocabulary (E/F/R); 12 p.; ISO (edtr.), 1986. See especially definitions 3.6 quality assurance, and 3.1 quality, and its note 7 (quality facet).
2. On Testing Adherence to Standards - Concepts, Criteria, Patterns;;v. Sydow;Computers and Standards,1986
3. Wegner, E.: Testing of Software for Conformity with Standards; a contribution to INSITS, Braunschweig 1989, published within these proceedings. See also references there.
4. Appelt, W.: Conformance Testing of ODA Documents and ODA Implementations according to ISO 8613 - Based on its Formal Description (FODA); a contribution to INSITS, Braunschweig 1989, published within these proceedings. See also references there.
5. ISO/IEC 2382: Information Processing Systems - Vocabulary; Parts 1–26 (further parts under development by JTC 1/SC1) & Permuted Index by AFNOR.