<prompt> Translate the following text to EnglishMabadiliko katika ukubwa wa mfumo inatarajiwa inaweza kuhitaji reestimates ya gharama ya maendeleo, kwa kutumia mifano ya gharama ilivyoelezwa hapo awali katika nyongeza hii.  <response>: Changes in the expected system size may necessitate reestimates of the development cost, using the cost models described earlier in this appendix. 