Why not have a DDC or UDC (dewey or universal decimal classification) tag,
so that authors can self-classify documents - keywords are only a half-way
house to sorting out indexing/classification.
-- Jon Wallis Senior Lecturer in Information Systems Engineering School of Computing & I.T., University of Wolverhampton, UK - WV1 1SB Tel/Fax +44 (0)1902 322203/322680 http://www.scit.wlv.ac.uk/~cm1906 ------------Opinions are mine, not those of my employer--------------