Trosky B. Callo Arias Pierre America Paris Avgeriou Defining execution viewpoints for a large and complex software-intensive system. 1-10 2009 WICSA/ECSA http://dx.doi.org/10.1109/WICSA.2009.5290784 conf/wicsa/2009 db/conf/wicsa/wicsa2009.html#AriasAA09