QUALITY ASSURANCE QUALITY ASSURANCE Quality assurance is an
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QUALITY ASSURANCE Quality assurance is an organisation's guarantee that the product or service it offers meets the accepted quality standards. It is achieved by identifying what "quality" means in context; specifying methods by which its presence can be ensured; and specifying ways in which it can be measured to ensure conformance.
QUALITY ASSURANCE According to the ISO, quality assurance is a part of quality management, providing confidence that quality requirements (need or expectation that is stated, generally implied or obligatory) will be fulfilled.
QUALITY ASSURANCE Quality assurance is a component of quality management and is focused on providing confidence that quality requirements will be fulfilled. • Things we can do to ensure we produce a high quality (low defect) product.
Why Have Quality Assurance?
Quality assurance controls work. When you control your activities, you build in safety and efficiencies, and when the work is completed, you can show evidence of satisfactory completion. All of this provides confidence in your ability to manage your work.
Why Have Quality Assurance? Who needs confidence that you can control work? • The workers • The general public • Regulators • Law makers and budget approvers
What Is A Quality Assurance Program? All the actions that you have planned in order to work safely and reliably, and to provide confidence that your facility will perform as planned.
MAIN APPROACHES Two main approaches to QA: • Process: Build in quality from the start • Test: Add quality through removing bugs
WHAT TYPES OF TESTING CAN WE DO? • Functional • Performance • Security • Stress • Errors • Reliability/availability • Usability (is it obvious)
Why? Up to 4 x the normal number of defects are reported for released products that were developed under excessive schedule pressure (Jones, 94)