What principle is emphasized in "Quality at the Source"?

The principle emphasized in "Quality at the Source" focuses on the idea that quality should be built into the product or service at the origin of the process, primarily by the individuals performing the work. This means that workers are empowered to identify and address defects as they occur, rather than relying solely on management or external audits to ensure quality after the fact. By addressing issues immediately, employees take ownership of their work, contribute actively to maintaining high standards, and can prevent defects from progressing through the production cycle, ultimately leading to better outcomes and reduced waste. This proactive approach allows for immediate rectification and continuous improvement, fostering a culture of quality throughout the organization.