[DPF] Property definitions etc.

Hi Jeremy and Mark,

This message contains a response to comments on

http://www.w3.org/TR/2004/WD-DPF-20041122/

Property definitions etc.

RDF Schema and the Web Ontology Language OWL provide mechanisms to  
define properties, including: - labels for the property in multiple  
language - giving the types of the subject and the object of the  
property - relationships such as subPropertyOf between this property  
and other properties. The Device Independence Working Group have been  
work using OWL to describe properties. DPF collaboration and  
coordination should be explored with OWL and CPC.


The DPF Working Group is exploring properties though DIWG work items  
in CPC.

In addition the WD includes the text in the Introduction (Section 1.0).

The Dynamic Properties Framework is designed to provide direct access  
to properties even though they may be represented by particular  
vocabularies originating in different specifications and  
organizations. DPF concentrates on interfaces by which access to  
characteristics are obtained in programming environments, rather than  
on mechanisms used to represent the information. As a result, DPF  
provides a level of insulation from specific representations.

The DPF may well encompass ontology's for device properties and  
characteristics defined by other working bodies (for example [OMA])  
and is therefore outside the scope of DPF. However, it is the intent  
of the Device Independence Working Group [DIWG] to specify  
representations of ontology's through [OWL], as well as presentation  
characteristics being developed by the [DIWG] through Core  
Presentation Characteristics [CPC] work item activities.  
Consequently, the DPF provides mechanisms to access device properties  
and characteristics whose ontology's and accessing interfaces are  
specified elsewhere.
-Keith Waters

Received on Monday, 6 June 2005 21:56:35 UTC