hˈaɪsmɪθ wʌz wˈʌn ʌvðə sˈɛvəntˌiːn ɚɹˈɪdʒɪnəl sˈɪɡnətˌoːɹiz ʌvðɪ ˈædʒəl mˌænɪfˈɛstoʊ, ðə fˈaʊndɪŋ dˈɑːkjuːmənt fɔːɹ ˈædʒəl sˈɔftwɛɹ dɪvˈɛləpmənt.
Highsmith was one of the 17 original signatories of the Agile Manifesto, the founding document for agile software development.