<prompt> Translate the following text to SwahiliMost of the remaining costs are attributable to extending the quality system and requiring appropriate documentation, evaluating suppliers and contractors and management review.  <response>: Zaidi ya gharama zilizobaki ni kutokana na kupanua mfumo wa ubora na kuhitaji nyaraka sahihi, kutathmini wa wauzaji na wakandarasi na ukaguzi wa usimamizi. 