Complementing Jason's UML presentation, the first 74 viewgraphs
in the files below are about

The UML Object Constraint Language (OCL)

I show several examples and indicate how OCL can be further improved
based on DARPA sponsored research.

Those viewgraphs are part of a televised National Technological
University course on Demeter using the UML class diagram notation.

-- Karl

Let $1 = lec9.

http://www.ccs.neu.edu/research/demeter/course/f97/lectures/powerpoint
(Powerpoint 95, version 7)

$1.ppt.zip
$1.ppt

http://www.ccs.neu.edu/research/demeter/course/f97/lectures/postscript

$1-color-2-per-page.ps.zip
$1-color-2-per-page.ps

All earlier lecture notes are also in those two directories.