The Message board and Group message board list web parts enable content rating too. For both of them, you have to set the following three properties:
|•||Enable content rating - if checked, content rating will be enabled by the web part|
|•||Rating type - appearance of the web part; Stars, Radio-buttons or Drop-down list can be chosen|
|•||Max rating value - size of the rating scale; e.g. if 7 is entered, rating will be possible on a scale from 1 to 7|
When leaving a board message, the rating control (determined by the Rating type property) will be displayed above the Name field. Users can select their rating and after sending the message, the rating will be applied.