Crossing debtags and popcon

[Benjamin Mesing]

Hello,

> have a look: http://people.debian.org/~enrico/popsuggest.php
> 
> Given a popcon submission, it finds similar systems and provide package
> suggestions based on them.  Then the results are presented broken down
> by tag, and tags can also be used to filter the results to specific
> contexts (like games, gui apps or software development).

I don't understand how this is working. What do you mean by: "Given a
popcon submission, it finds similar systems and provide package
suggestions based on them."?

What is the problem this is trying to solve?

Regards Ben