How to represent range

[ata...@gmail.com]

I am currently trying to find a common way to display a rating system
for a review. The problem is trying to find a way to display the lower
and upper limits of a particular rating system in a way that could be
machine readable as well as human readable. And I mean human readable
in the sense that it should be relatively obvious what is being said.
An example of this would be how a date is displayed:

January 12, 2006 1:20pm
20060112T1320

To represent this in HTML I might use

<abbr class="dtreviewed" title="20060112T1320">January 12, 2006
1:20pm</abbr>

In this way the date is easily readable to the user, and any machine
parser.

So, if I wanted this to be displayed,

"I would rate this group at 4 out of 5 stars"

I might use:

<p>I would rate this group at <abbr class="rating" title="4
(1,5)">4</abbr> out of 5 stars</p>

To represent a value of 4 where the lower limit is 1 and the upper
limit is 5. However, I want to represent this information in a way
that is in some way technically correct and standard. Any ideas?

Atamido