Cédrick,

On 17 December 2010 17:13, Cédrick Béler <cdrick65 at gmail.com> wrote:
> If not, do you know any open-source projects outside of Smalltalk that I may look at ?

JGraphT was quite useful for me once, and it is rather nicely designed IMHO.
http://jgrapht.sourceforge.net/

Best,

Michael