To build a quality assurance process, you first need to figure out what quality means to you and your business. Once you have a definition of quality, you can begin to create a system that measures it. You can also identify areas where your business could improve quality and take steps to address these issues. One popular approach to measuring quality is using the five pillars of quality: product, process, delivery, customer experience, and environmental health. Each pillar has specific measurements that can help track progress and ensure that your company is meeting the standards you set for quality.