It would be nice if the CPAN modules were categorised beyond their name and what is used on http://search.cpan.org/. e.g. categories such as Testing, Templating systems, XML processing, etc.

As there are so many modules there will be many categories as well so categories should probably also need to be placed in a hierarchy.

I wonder what would be the best way to approach this?

• Each module author could select several categories, put it in META.yml to be extracted by automated tools ?
  (What about modules that don't get updated any more?)
• A database where the community can do the categorisation?
• A database where selected few people will do the categorisation using the input of the community ?

What do you think?

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