Customizing Comments - Adding comments fields how to ?

In general, user will type the subject (optional) & comment to submit the user's comment.

Is it possible to provide additional comment fields to the user to fill-in during comment submission ?? If yes, need suggestions on how to configure Drupal to accept additional comment fields and display the same ??
Ex: Rate the following along with the comments :
(a) Features (1 to 5)
(b) Reliability (1 to 5)
(c) Ease of User (1 to 5)
(d) Documentation (1 to 5)

Refer drupalmodules.com website in which drupal modules are reviewed or commented based on various categories.
FYI, Adding a review http://drupalmodules.com/node/11/addreview

Source: http://drupalmodules.com

Any thoughts OR suggestions ??

Thanks,
Nanda Kishor