UML and OCL

I found these two links in the SQL Server usenet group and think they will be both of value, and appreciated, by those here that have to deal with those schooled in UML that think they understand relational databases.

http://www.dbdebunk.com/page/page/622916.htm http://www.dbdebunk.com/page/page/622867.htm

The links are to Part 1 and Part 2 of an article by Chris Date.

-- 
Daniel A. Morgan
University of Washington
damorgan_at_x.washington.edu
(replace 'x' with 'u' to respond)