Quality control is about adherence to requirements.

Examples of quality control activities include inspection, deliverable peer reviews and the testing process. Quality control is used to verify that deliverables are of acceptable quality and that they are complete and correct.

Quality Control (QC) refers to quality related activities associated with the creation of project deliverables.

Examples of quality assurance include process checklists, project audits and methodology and standards development. Quality Assurance (QA) refers to the process used to create the deliverables, and can be performed by a manager, client, or even a third-party reviewer.When statistical tools & techniques are applied to finished products (process outputs), they are called as Statistical Quality Control (SQC) & comes under QC.Дifferences between Quality Assurance and Quality Control Definitions of QA and QC When they are applied to processes (process inputs & operational parameters), they are called Statistical Process Control (SPC) & it becomes the part of QA. Statistical Tools & Techniques can be applied in both QA & QC. Validation/Software Testing is an example of QC Quality control is usually the responsibility of a specific team that tests the product for defects. The activities or techniques used to achieve and maintain the product quality, process and service.Д®veryone on the team involved in developing the product is responsible for quality assurance. Prevention of quality problems through planned and systematic activities including documentation. Periodic conformance audits of the operations of the system.ДЇinding & eliminating sources of quality problems through tools & equipment so that customer's requirements are continually met. The goal of QC is to identify defects after a product is developed and before it's released.Д®stablish a good quality management system and the assessment of its adequacy. The goal of QA is to improve development and test processes so that defects do not arise when the product is being developed. Quality control, therefore, is a reactive process. QC aims to identify (and correct) defects in the finished product. QA aims to prevent defects with a focus on the process used to make the product.

The activities focus on identifying defects in the actual products produced. QC is a set of activities for ensuring quality in products. QA is a set of activities for ensuring quality in the processes by which products are developed. Comparison chart Quality Assurance versus Quality Control comparison chart

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