ACLs in graphs

[Peter Neubauer]

Hi folks,
I have taken some time this morning to flesh out the
http://wiki.neo4j.org/content/ACL page. I find the possibility of
complex ACLs in graphs very interesting, we have been using it for a
long time in different CMS and other complex systems, and it is cool
to see how beautifully seemingly non-graphy problems become when you
start thinking about it.

This ACL model is inspired by an old IBM article about permission
modifiers that are applied in a top-down or bottom-up approach, but I
can't find it anymore. Has anyone come over this pattern and can point
to it, so I can include it for reference?

Other comments or experiences with these kind of problems?

Cheers,

/peter

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