Gerhard Fischer Elisa Giaccardi Yunwen Ye Chris DiGiano Kumiyo Nakakoji Converging on a science of design through the synthesis of design methodologies. 2837-2840 2007 conf/chi/2007a CHI Extended Abstracts http://doi.acm.org/10.1145/1240866.1241090 db/conf/chi/chi2007a.html#FischerGYDN07