SOSE 2011: The 6th International Symposium on Service Oriented System Engineering, Dec 12-14, 2011, Irvine, CA, USA; SOSE 2010: The 5th International Symposium on Service Oriented System Engineering, Jun 4-5, 2010, Nanjing, China; SOSE 2008: The 4th IEEE International Symposium on Service-Oriented System Engineering, Dec. 18-19, 2008, Jhongli, Taiwan. SOSE 2007: The 3rd IEEE International Workshop on Service-Oriented System Engineering, Oct. 24-26, 2007, Hong Kong, China SOSE 2006: The 2nd International Symposium on Service-Oriented System Engineering, Oct. 25-27, 2006, Shanghai, China. SOSE 2005: The 1st IEEE International Workshop on Service-Oriented System Engineering, Oct. 20-21, 2005, Beijing, China.