<prompt> Translate the following text to SwahiliCost models project the time and cost to develop a system on the basis of estimates of the systems size and other pertinent factors.  <response>: Mifano ya gharama ya mradi wakati na gharama ya kuendeleza mfumo kwa msingi wa makadirio ya ukubwa wa mfumo na mambo mengine yanayohusiana. 