• Quality assurance is defined as 'a component of quality management aimed at ensuring that quality criteria are met.' Internally, quality assurance provides assurance to management, and externally, it provides assurance to customers, government agencies, regulators, certifiers, and third parties.
• 'All the planned and systematic activities conducted inside the quality system that can be proved to provide confidence that a product or service will fulfil quality requirements,' says another definition.
• Quality control is defined as 'a component of quality management aimed at ensuring that quality criteria are met.' While quality assurance is concerned with how a process or a product is carried out, quality control is mainly concerned with the inspection part of quality management. 'The operational strategies and activities utilised to meet quality requirements,' says another description.

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