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10 Avr 2005
RVW!
Marc Canter asked me to have a look at RVW! What RVW! does is query Amazon based on input of the user. This results in a list of possible correspondences. The user then clicks on the item (book, CD, DVD) that he wants to review. This fills in the fields that correspond to the del.icio.us bookmark service. The user then only has to set the rating, add tags and a description (a review).
I must say that this is a very neat way of posting reviews. But everything must be encoded in the four fields that del.icio.us offers: url, description, extended and tags. For a book review the url is then the link to the book at Amazon (you can chose your locale), the description is the title of the book, extended is the actual review and in the tags field multiple things are added: books, year of publication, the ID (urn:asin:0596005431) and a rating (rating:). Thus instead of defining new tags, a set of standard values are defined. It is an interesting approach. I would however make it more clear that the RVW-namespace has been used. Thus: format:book, year:2004, urn:asin:0596005431 rating:future. And we have to formalise the tag-field.
(Marc Canter wants me to learn this book)
In OPML this would look something like this:
<outline text="book review" RVW="RVW">
<outline text="http://www.amazon.fr/exec/obidos/ASIN/0596005431/" RVW="url"/>
<outline text="Hugh E. Williams, David Lane: Web Database Applications with PHP and MySQL (en anglais)" RVW="title"/>
<outline text="A book which I stiil must read" RVW="description"/>
<outline text="php mysql" RVW="tags">
<outline text="book" RVW="format"/>
<outline text="2004" RVW="year"/>
<outline text="0596005431" RVW="urn:asin"/>
<outline text="future" RVW="rating"/>
</outline>
</outline>
The entire review is a parent with attribute RVW=“RVW”. Each field is a separate child with an appropriate RVW= attribute (url, title, description, tags). The special encoded tags are a child of tags with appropriate RVW= attributes (format, year, urn:asin rating).
I must say that this looks pretty neat and very easy to produce in an outliner. I only miss the image (RVW=“image”) and I guess I could add an ISBN-number as well (RVW=“isbn).