From Microformats Wiki
Jump to navigation Jump to search

Current Review Formats

There have been several efforts to define data formats for posting "reviews" of products, services etc. on the Web.

This page serves to document the current list of review schemas, formats, and efforts as background for the design of a simple reviews microformat. -Tantek


Copied from reviews-formats which itself was contributed from Technorati Developer's Wiki: ReviewsFormats)

  • Tantek Çelik
  • Niall Kennedy

See Also


Notice that author appears several times in the lists below, and that it sometimes refers to the author of the review, and other times to the author of the book being reviewed. A parenthetical will be used to distinguish them now.

Previous Schemas and Formats

Generic to any kind of review


  • variants for embedding in Atom, RSS2, RSS1, RDF
  • apparent schema
    • author of review
    • content of review
    • creator of work
      • example: book author, movie director
    • percentage score rating
    • multiple identifiers
      • example: ISBN, ASIN, UPC, LOC
    • link to purchase
  • appears to be loosely connected with the term "!OpenReviews" (has also referred to other efforts) which itself appears to be yet another OpenBlahBlah buzzword with no substance behind it (AKA placeholder term).

RDF Review Vocabulary

Simple-Review XML

  • Embeds XML in <script type="application/x-subnode">
  • XSD
  • apparent schema
    • review-title
    • item
      • name/title
      • type
      • URL
      • image URL
    • rating (user visible, max, normalized to 0..1 value)
    • comments/description

Google Base Formats

Google Base provided examples of uploading reviews in several formats. They provided sample files to be used as a template for creating your own files to upload to Google Base. They provided samples in the following formats: txt, RSS 1.0, RSS 2.0, Atom 0.3, Atom 1.0. In all cases, they share the same basic vocabulary:

  • vocabulary:
    • author
    • description
    • expiration_date
    • id
    • image_link
    • link
    • location
    • name_of_item_reviewed
    • publish_date
    • rating
    • review_type
    • reviewer_type
    • title
    • url_of_item_reviewed

Google Safe Search Meta

In Google recommends marking "adult" (presumably "NSFW" or "X-Rated") pages with:

<meta name="rating" content="adult">

For specific domains



See Also

See hReview for the result and evolution of these thoughts on a microformat.