GeoQO Architecture
From Geoqo
Internally, GeoDB works something like this:
http://www.geoqo.org/images/GeoDB-arch.png
geoqo
geoqo is just a command line utility that passes it's arguments to the components above
http://www.geoqo.org/images/geoqo-arch.png
scripts
Scripts do even more, as they can exercise any of the above bubbles at any point.