Which term describes a product or service that successfully meets its intended purpose?

The term that best describes a product or service that successfully meets its intended purpose is "fit for purpose." This phrase indicates that the product or service has been designed and developed to satisfy the specific needs or requirements for which it was created. When a product is fit for purpose, it means that it functions correctly within its intended environment and achieves the outcomes that the end user expects.

This concept is fundamental in both quality assurance and performance evaluation, as it ensures that what is being produced effectively meets the initial design criteria and fulfills the intended use. In a supplier relationship context, evaluating whether a product or service is fit for purpose is critical for ensuring customer satisfaction and maintaining strong relationships with suppliers.

While "marketable," "user-friendly," and "quality assured" are important qualities, they do not specifically denote that a product fulfills its intended purpose in the same way that "fit for purpose" does. "Marketable" refers to the commercial viability of a product, "user-friendly" emphasizes ease of use, and "quality assured" pertains to meeting specified quality standards, but none of these terms focuses explicitly on effectiveness in fulfilling intended purposes like "fit for purpose."