- From: Gregg Kellogg <gregg@kellogg-assoc.com>
- Date: Tue, 1 Nov 2011 23:58:10 -0400
- To: HTML Data Task Force WG <public-html-data-tf@w3.org>
The limited feedback so far on my previous proposal came down against using _contextual_ as the default property URI generation scheme, or even including it.
I'd like to get +1/-1 from people on resolving these issues:
1) A Microdata processor uses a registry (with undefined format and update procedure for now) to control the behavior of property URI generation.
2) A Microdata processor uses a registry (with undefined format and update procedure for now) to control the serialization of multi-valued properties.
3) One property URI generation strategy is _vocabulary_, which defines a common URI to use for creating URIs for items with an @itemtype which begins with the vocabulary URI
e.g., @itemtype=http://schema.org/Person, @itemprop=name => http://schema.org/name.
Also @itemtype=http://schema.org/Person/Deceased, @itempropt=name => http://schema.org/name
4) One property URI generation strategy is _type_, which defines creates property URIs by appending a the property name to the itemtype URI separated by a '#'
e.g. @itemtype=http://microformats.org/hcard, @itemprop=name => http://microformats.org/hcard#name
5) On property URI generation strategy is _base_, which creates a property URI by using the portion of the itemtype URI up to and including the final '#' or '/'
e.g., @itemtype=http://schema.org/Person, @itemprop=name => http://schema.org/name.
Also @itemtype=http://schema.org/Person/Deceased, @itempropt=name => http://schema.org/Person/name
6) The default URI generation strategy is _base_.
7) One multi-valued property serialization strategy is _unordered_, which creates triples for multiple values with a common subject and predicate.
8) One multi-valued property serialization strategy is _list_, which places all values in an RDF Collection (rdf:List) as the object of a triple.
9) There is no _contextual_ URI generation strategy, and the Microdata to RDF property generation is lossy with respect to JSON, in that properties of untyped sub-items will result in the same URI, rather than being distinct.
Please give +1/-1/0 to each of the above statements.
Gregg
Received on Wednesday, 2 November 2011 03:59:00 UTC