Soo Ling Lim Fuyuki Ishikawa Eric Platon Karl Cox Towards Agile Service-oriented Business Systems: A Directive-oriented Pattern Analysis Approach. 231-238 2008 IEEE SCC (2) http://doi.ieeecomputersociety.org/10.1109/SCC.2008.65 conf/IEEEscc/2008 db/conf/IEEEscc/scc2008.html#LimIPC08