Difference Between QA and QC

Question

Accepted Answer

QA focuses on preventing defects, while QC focuses on identifying and fixing defects.

QA stands for Quality Assurance and is a proactive process that focuses on preventing defects by establishing processes and standards.
QC stands for Quality Control and is a reactive process that focuses on identifying and fixing defects through inspections and testing.
QA is concerned with the overall quality of the product or service, ensuring that it meets the required standards and customer expectations.
QC is concerned with the quality of the individual components or units of the product or service, ensuring that they meet the specified requirements.
QA involves activities like process definition, documentation, training, and continuous improvement.
QC involves activities like inspections, testing, and defect tracking.
Example: In software development, QA would involve establishing coding standards, conducting code reviews, and implementing automated testing processes. QC would involve executing test cases, identifying and reporting bugs, and verifying bug fixes.
Example: In manufacturing, QA would involve setting up quality control processes, conducting audits, and ensuring compliance with industry standards. QC would involve inspecting finished products, conducting tests, and rejecting defective items.