1. http://www.ibm.com/developerworks/library/specification/ws-bpel/
2. http://www.uml.org
3. OSGi originally stood for Open Service Gateway Initiative. This term is no longer used and the alliance is now known simply as OSGi., http://www.osgi.org
4. http://www.google.com/codesearch
5. http://www.w3.org/TR/sawsdl