As already mentioned in section , the service model can be used to derive and classify research questions. The following list points out some of the open research questions that, we feel, need to be addressed:
![[*]](http://www.nm.informatik.uni-muenchen.de/common/icons/latex2html-97.1/cross_ref_motif.gif){kind=icon}
, the
service model can be used to derive and classify research
questions. The following list points out some of the open research
questions that, we feel, need to be addressed: