Diagnose then prescribe.
Diagnosing, then prescribing, is a principle that’s appropriate for medicine, law, product design, engineering and much more. In fact, it’s a principle evident in all areas of life. It has its greatest power, though, in the area of interpersonal relations.
Word of the Day (from http://wordsmith.org/words/today.html)
verb tr., intr.: To be necessary, worthwhile, or appropriate.