There have been several efforts to define data formats for posting "reviews" of products, services etc. on the Web.
- Tantek Çelik
- Niall Kennedy
Thoughts on a Microformat
Thoughts towards a simple microformat subset of earlier efforts, sufficient to express 80/20 of real world review examples on the Web.
Common review fields
- optional:type of item (business, Web page/site, product, event, person, place, file, text)
- name/title of item being reviewed (string | ["hCard"] if business or person)
- optional:URL (all additional information should be somewhere else, not in the review itself)
- optional:image (URL)
- reviewer (["hCard"]|name|email|URL)
- review publication/authoring date (ISO8601 datetime)
- rating 1 to 5 (default max = 5, default min = 1)
- optional:tags (keyword,rating)*
- optional:comments (string)
See hReview for the result and evolution of these thoughts on a microformat.