Quality assurance is the heart and soul of quality control. Expressed simply, quality assurance consists of guaranteeing that a consumer can purchase a product or service with confidence and enjoy its satisfactory use for a long period. Quality assurance represents a type of promise or contract with the consumer regarding quality.
Quality assurance establishes organizational standards procedures for quality. All the planned and systematic activities implemented within the quality system and demonstrated as needed to provide adequate confidence that an entity will fulfill requirements for quality.
Often, this issue is confused. The two approaches are complementary to each other but different. Whereas Quality Control is corrective, Quality Assurance is a prevention approach. Quality control is the operational techniques and activities that are used to fulfill requirements for quality. It includes the processes and methods used to monitor work and observe whether requirements/standards are met.
On the other hand, Quality assurance is all those planned and systematic activities implemented within the quality system and demonstrated as needed to provide adequate confidence that a work product will fulfill requirements for quality.
Quality management includes all activities of the overall management function that :
Determine the quality policy, objectives, and responsibilities and implement them by means such as quality planning, quality control, quality assurance, and quality improvement within the quality system.
Quality management principles are fundamental and comprehensive beliefs for leading and operating an organization that aims at continually improving its performance on a long-term basis by focusing on customers while addressing the needs of all other stakeholders. Basic quality management principles include :
- Customers driven organization
- Leadership
- Involvement of people
- Process approach
- System approach to management
- Continual improvement
- Factual approach to decision making
- Mutually beneficial supplier relationships.
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