John Hutchinson Gerald Kotonya James Walkerdine Peter Sawyer Glen Dobson Victor Onditi Evolving Existing Systems to Service-Oriented Architectures: Perspective and Challenges. 896-903 2007 conf/icws/2007 ICWS http://doi.ieeecomputersociety.org/10.1109/ICWS.2007.88 db/conf/icws/icws2007.html#HutchinsonKWSDO07