W3C home > Mailing lists > Public > public-openannotation@w3.org > May 2012

Problems with the new beta spec

From: Sebastian Hellmann <hellmann@informatik.uni-leipzig.de>
Date: Wed, 09 May 2012 18:09:26 +0200
Message-ID: <4FAA96B6.2060101@informatik.uni-leipzig.de>
To: public-openannotation@w3.org
Dear all,
I hope this is the right mailing list to give feedback on the new beta 
core specification ( http://www.openannotation.org/spec/core/ )

1. Could somebody please replace the examples with realistic ones? The 
document is very difficult to understand. Examples that are too generic 
are not helpful, e.g.

<Anno1> a oa:Annotation ;
     oa:hasBody <Body1> ;
     oa:hasTarget <Target1> .

<Target1> a <Type1> ;
     dc:format "mimetype1" .

2. Can there be more than one body per annotation?  Why do you need the 
Annotation node then? You would have to create an extra URI without a 

3. The arguments against URI Fragments are very confusing, and I am not 
sure what is meant exactly.  e.g.
"If the Target of the Annotation was a resource with a fragment URI, 
then it would not be possible to query for the Source's URI directly."
Technically, URI's are not queried, instead URL's are retrieved. With a 
URL containing a hash-fragment, the client would strip the #-part and 
retrieve the whole content of the resource and then select the 
respective fragment addressed by the fragment identifier. That is quite 
a  "direct" action in my opinion.

I am just asking, because we are developing the NLP Interchange Format 
within LOD2. See 
http://svn.aksw.org/papers/2012/WWW_NIF/public/string_ontology.pdf for 
the latest version and http://nlp2rdf.org/about  for the project. The 
goal is of course to make it compatible with your effort and provide a 

Could somebody make an OpenAnnotation example for me that covers the 
example in NIF? i.e. annotate a substring within a web page:

Attach a comment, e.g. "Hey Tim, good idea that Semantic Web!" to the 
first occurrence of "Semantic Web" in this resource: 

All the best,

Dipl. Inf. Sebastian Hellmann
Department of Computer Science, University of Leipzig
Projects: http://nlp2rdf.org , http://dbpedia.org
Homepage: http://bis.informatik.uni-leipzig.de/SebastianHellmann
Research Group: http://aksw.org
Received on Wednesday, 9 May 2012 16:10:06 UTC

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