<prompt> Translate the following text to SwahiliFirst, the companies kept the degree of the design challenge manageable before starting a new product development program by using an evolutionary approach to develop a product.  <response>: Kwanza, makampuni kuweka kiwango cha changamoto ya kubuni manageable kabla ya kuanza mpango mpya wa maendeleo ya bidhaa kwa kutumia mbinu ya mageuzi ya kuendeleza bidhaa. 