Several of us use Debian GNU/Linux and among other features we have all appreciated the way Debian software package dependencies are calculated to give us a stable package. At gnowledge.org we harvested the data from the packages.tgz file of Debian 4.0 and created a program that graphically displays the dependencies, called dependency maps. Search for your favorite package and see how dependent a software is on other packages.
Few examples: http://www.gnowledge.org/debmap_view?objid=python http://www.gnowledge.org/debmap_view?objid=emacs21
Search for your favorite from:
http://www.gnowledge.org/search_debmap?val=1
One of the main reasons why we are interested in Debian dependency maps is that we are inspired by that model and now wants to create a similar knowledge.tgz file for all concepts and activities as gnowledge.org is in the process of creating a gnowledge distribution. You will also be able to see how we are using the idea of Debian for knowledge domain.
gnowledge.org is waiting for all of you to spread the message, specifically among the teachers of any subject whatsoever to add the dependency relations so that we can soon have a gnowledge (free knowledge distribution) distro.