Today, while the phrase might appear in modern data strings or SEO contexts, its root remains the same: a pursuit of an upper tier of performance. Whether in the rigorous data-driven environments of Lean Six Sigma or the iterative loops of Agile development , "quality" is no longer just about a physical product; it is about the reliability of systems and the satisfaction of the end-user. The "extra" signifies the margin by which a service or product surpasses the baseline, turning a standard transaction into a premium experience. kangaroos: Topics by Science.gov
: Delivering extra quality helps in achieving high levels of customer satisfaction. When customers feel that they are receiving more than what they expected, they are more likely to become loyal to the brand, leading to repeat business and positive word-of-mouth. df6 org extra quality