tibco-gi

I am interested in learning tibco.I have found some good videos in youtube but all those are only tutorials.None of the videos answer why tibco is used in organizations and how it is useful to the same.I saw some tutorials in webservices and yes we can do the same using java. I am basically from java background and have quite good experience in webservices.I saw some tutorials in tibco regarding web services and they are using soap palletes. Not only for web services I have also seen tutorials for jdbc pallettes.In java also we have jdbc.so many questions arise in my mind and one of the