foaf:homepage IFP

[GoogleCodeExporter]

What steps will reproduce the problem?

1. <#DBPediaDataset> a void:Dataset ; foaf:homepage <http://dbpedia.org/> .
2. <#DBPediaProject> a foaf:Organization ; foaf:homepage <http://dbpedia.org/> .
3. Perform OWL reasoning.

What is the expected output? What do you see instead?

Expected: <#DBPediaDataset> owl:differentFrom <#DBPediaProject> .
Actual: <#DBPediaDataset> owl:sameAs <#DBPediaProject> .

What version of the product are you using? On what operating system?

All/any.

Please provide any additional information below.

Google Code's template bug report is really unhelpful for void.

The problem is using foaf:homepage, an IFP to link to a dataset's homepage. 
What if somebody else decides that the URL is the foaf:homepage of an 
organization, or, god forbid, a person. The dataset is not owl:sameAs the 
project. (For example, while the dataset and project probably both have a 
creation date, the project's creation date probably precedes the dataset's 
creation date.)

Original issue reported on code.google.com by TobyInks...@googlemail.com on 29 Dec 2011 at 12:46

[GoogleCodeExporter]

The modeling that you're using in your example is explicitly warned against in 
the spec. Quoting:

[[
To avoid inappropriate “smushing”, one should not use related pages that 
are not specifically about the dataset, such as the funding project's homepage 
or publishing organisation's homepage, as the value of foaf:homepage. 
Additional web pages with relevant information that can not be considered the 
homepage of the dataset can be linked with foaf:page.
]]
http://www.w3.org/TR/void/#webpage

Original comment by richard....@gmail.com on 1 Jan 2012 at 5:52

• Changed state: Invalid

[GoogleCodeExporter]

Perhaps worth stating the obvious, ie. that a single project or organization 
could have multiple datasets?

Original comment by danbri2...@danbri.org on 1 Jan 2012 at 6:28

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[deleted comment]

[GoogleCodeExporter]

It may be explicitly warned about, but the only example given of a 
foaf:homepage for a dataset, is <http://dbpedia.org/> which seems like a 
potentially ambiguous one.

Original comment by TobyInks...@googlemail.com on 1 Jan 2012 at 8:08

[GoogleCodeExporter]

What other entity that is distinct from the DBpedia dataset could possibly have 
<http://dbpedia.org/> as its homepage?

Original comment by richard....@gmail.com on 1 Jan 2012 at 10:54