http://fedoraproject.org/extras/4/i386/repodata/

[seth vidal]

> Keeping the tag information in an external file has the converse problem:
> every time you want to change (or worse, add) a package, someone has got to
> edit the file. And I don't think we want to have a .metadata file for every
> package, so it's likely to be Some Central File.
> 
> > About the only reason I can think of for doing it in the spec is 
> > simplicity
> 
> Exactly. And don't underestimate simplicity. :)

Adding a tag or modifying the use of the tag is tricky.

yum and rpm are not just fedora things so modifications from here to
things have to do with the spec and hence the rpm is tricky.

so for simplicity sake - stick with an external file.

-sv