||QA is a set of activities for ensuring quality in the processes by which products are developed.
||QC is a set of activities for ensuring quality in products. The activities focus on identifying defects in the actual products produced.
||QA aims to prevent defects with a focus on the process used to make the product.
||QC aims to identify defects in the finished product.
||The goal of QA is to improve development and test processes so that defects do not arise when the product is being developed.
||The goal of QC is to identify defects after a product is developed and before it's released.
|As A tool
||QA is a managerial tool
||QC is a corrective tool
||Everyone on the team involved in developing the product is responsible for quality assurance.
||Quality control is usually the responsibility of a specific team that tests the product for defects.