Gregor:
I think that there is a lot of "fields" where this views cover the same stuff. When I first read about ctv I thought it will be implemented more in somewhat "hierarchical" or kind of "multiple" way, since for example linear models come usefull in many different fields and some people might never look under "Econometrics" view as Paul stated. I realize that "hierarchical/multiple" is far from easy and I do not have any clear idea how to implement it, but it would probably easier to maintain larger set of views in such a way and it would be easier to generate new ones.
Achim
Yes, the implementation would not be the main problem, but the maintenance. For hierarchical views, there needs to be much more communication and coordination between the maintainers of related views. My idea was to keep the work low for the maintainers...hoping that there would be more people volunteering to maintain a view related to their field of research or application.
Yes, you are right about needed work. Anyway, one can copy some parts from different views and create a new one ;) Regards, Gregor