Quality Assurance involves carefully planning and writing down every step of the manufacturing process, from choosing the raw materials to putting them together. While Quality Control makes sure that the finished goods meet the quality standards that have already been set.

Quality control is a reactive process that focuses on identifying and resolving issues that arise in the final product after it has reached consumers. Quality assurance is a proactive process primarily concerned with ensuring quality requirements are met before the product or service is released to the public.