Quality assurance and control

Quality Assurance

Quality Assurance (QA) involves maintaining the desired level of quality in a product by conscientiously planning, systematising, and managing the manufacturing process.
In QA, the focus is on preventing defects from occurring in the first place, rather than identifying them post-production.
QA makes use of tools like process checklists and project audits to ensure products meet predefined targets.
Incorporating QA in the design and production process improves efficiency, shrinks production errors, and bolsters customer confidence in the product.

Quality Control

Quality Control (QC) is the process of identifying and amending defects in the finished product, ensuring it meets the specified quality standards.
QC includes activities like inspection, document review, and testing carried out on the actual product.
The primary objective of QC is to identify and resolve issues after the product is developed but before it is released.
QC is beneficial as it helps to identify and rectify issues quickly, which can save costs and prevent reputational damage.

Difference between QA and QC

While QA is a proactive method focused on prevention of quality concerns during the design and production process, QC is a reactive method to identify and correct defects in the final product.
In terms of scope, QA covers the entire system of production, including designing, materials management, and product assembly. In comparison, QC is more focused and usually only covers the inspection of the final product.

Importance of QA and QC in Design Production

QA and QC practices ensure the product is consistent in quality and aligns with the company’s quality standards.
They help safeguard the reputation of the company by minimising defects and maintaining high-quality output.
Adherence to QA and QC processes can improve customer satisfaction and business performance, as a high-quality product is more likely to meet customer expectations.
QA and QC practices can help reduce waste and costs in the long run by preventing errors and reducing the need for rework.

Remember, while quality assurance and quality control appear similar, their approach and focus differ significantly - QA is about preventing defects with a focus on the production process, while QC deals with detecting and correcting defects in the finished product.