Quality Assurance
1. Quality Assurance is a program by which the Head of Audit evaluates the operations of the auditing service.
 Notes: The purpose of the program is to provide reasonable assurance that our work conforms with the Standards for the Professional Practice of Auditing, our charter, and other applicable standards.
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2. Confirming the degree of excellence of a product or service, measured against its defined purpose. This might involve a number of techniques. For documentation it might involve inviting informed comment; for software, a method of formal testing, trialling or inviting public feedback on a beta version; for hardware, performance against specified test; for management process, comparison with a standard such as BSI5000.
(Source: ENISA - the European Network and Information Security Agency. BCM & Resilience Glossary)