All of this becomes policy. Zero defects, for instance, is a performance policy, not a slogan as some believe. Goodness gets described in the requirements and transactions. Quality assurance is a collection of procedures describing requirements and transactions. The ISO 9000 series offers valuable help in constructing this information.
Quality control represents the measurement of compliance to requirements.
When an organization includes integrity in its transactions, it can count on a reputation for reliability. The combination of usefulness and reliability produces success. Think about that personally. Those who follow the conventional-wisdom path will reach a certain successful plateau but will go no farther. Hopping on the ISO 9000 bandwagon won't enable your employer or client to deal with customer needs.