Comment 3 for bug 57418

I just looked a bit at this to satisfy my curiosity (at http://wiki.debian.org/Debtags).

The Packages file gains a Tag: field, for example 3dchess has has something like this:

Tag: game::board, game::board:chess, interface::3d, role::program, use::gameplaying, x11::application

The tags are held in a database http://debtags.alioth.debian.org/ssearch.html which raises some questions about any implementation in Launchpad:
 * Is the Debian database the only place we should be including tags from?
 * How often are the tags updated?
 * How up-to-date do the tags need to be in LP?

Once we understand more about where this data originates and its behaviour, adding the tags to Packages.gz is reasonably easy. We can probably import the tags into Launchpad's database which enables other parts of LP to benefit.