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Identifying OWL 1.1 files & the OWL namespace

From: Holger Knublauch <holger@topquadrant.com>
Date: Mon, 22 Jan 2007 15:49:54 -0800
Message-ID: <45B54DA2.6060107@topquadrant.com>
To: public-owl-dev@w3.org

Thinking further about OWL 1.1 support, I am wondering whether we should 
try to introduce conventions that make it easier for tools to 
distinguish OWL 1.1 files from OWL 1.0 files.  This is for example 
necessary to adjust user interfaces (menu entries etc) to support the 
additional constructs.

This leads me to two questions.

1) Do we assume that the additional OWL 1.1 vocabulary (such as 
owl:SelfRestriction ;) ) will be added to the OWL meta vocabulary [1]? 
Then the usual owl: prefix would be used, giving OWL files a more 
consistent look.  However, I am not sure whether it is a recommended 
practice to change a namespace that is now so widely deployed.  An 
alternative would be to use a different namespace for the new 1.1 URIs - 
this could help distinguish OWL 1.1 documents as well, but would also 
mean that something like an owl11: prefix would be required.

2) Since OWL 1.1 is evolving and URIs and semantics of its constructs 
may change, would it make sense to annotate documents with something 
like an owl:versionInfo = "OWL 1.1 (27-11-2006)" in the owl:Ontology?

Holger

[1] http://www.w3.org/2002/07/owl
Received on Monday, 22 January 2007 23:50:02 GMT

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