haʊˈɛvɚ, ðɪ ˌɛndʒɪnˈɪɹ stˈɪl nˈiːdz tə spˈɛsᵻfˌaɪ ðə kˈɔst fˈʌŋkʃən pɚɹˈæmɪɾɚz, ænd kəmpˈɛɹ ðə ɹɪzˈʌlts wɪððə spˈɛsᵻfˌaɪd dɪzˈaɪn ɡˈoʊlz.
However, the engineer still needs to specify the cost function parameters, and compare the results with the specified design goals.