In Tiki 10 (trunk at time of writing, 2012 August) a new feature has been integrated into forums called "Deliberation" in an early experimental state.
According to Wikipedia:
In other words, a deliberation (in Tiki) is basically a rating system where a single forum topic has multiple opinions, where each can be rated on a scale.
Why is this different than a rating or a vote?
- Gives you a single "opinion" to rate
- A single vote, generally yes or no
- Rate multiple choices rather than a single choice.
- Rate on a scale
- More than a single opinion that can be rated
The forum post, after it has been weighted through the deliberation feature by a couple of users, looks like this for a plain regitered user that has just rated the two opinions:
And this is how the same post would look like for the admin of that forum, in which some visual display of all the ratings for that post is shown with colors: