Package: Dia
In Debian: yes/no
Web: http://www.gnome.org/projects/dia/
Description
Dia is a diagram editor, equivalent to a proprietary software named Visio. Complete documentations and tutorials are available on the web site.
Links
Translation of the main tutorial in French : http://logiciels-libres-cndp.ac-versailles.fr/article.php3?id_article=42