Quality assurance and Quality control

Quality assurance: refers to the planned and systematic activities implemented in a quality system so that quality requirements for a product or service will be fulfilled.
There are two principles included in QA: "Fit for purpose" in English , the product should be suitable for the intended purpose ; and "Right first time", the mistakes should be eliminated. QA includes management of the quality of raw materials, assemblies products and components, services related to production and management, production , and inspection processes


Quality Control: is a short process by which entities review the quality of all factors involved in production
QC has three aspects :
1. elements such as controls, job management, defined and well managed processes, performance and integrity criteria, and identification of records.
2. competence
3. Soft elements, such as personal integrity.

controls include product inspection where every product is examined visually.