<prompt> Translate the following text to EnglishSehemu ya tatu ya maarifa inapatikana wakati bidhaa ya kuaminika inaweza kuzalishwa mara kwa mara ndani ya gharama zilizowekwa, ratiba, na malengo ya ubora.  <response>: The third knowledge point is achieved when a reliable product can be produced repeatedly within established cost, schedule, and quality targets. 