Veronica Gacitua-Decar Claus Pahl Service Architecture Design for E-Businesses: A Pattern-Based Approach. 41-50 2008 EC-Web http://dx.doi.org/10.1007/978-3-540-85717-4_5 conf/ecweb/2008 db/conf/ecweb/ecweb2008.html#Gacitua-DecarP08