- From: Brian McBride <bwm@hplb.hpl.hp.com>
- Date: Mon, 22 Oct 2001 15:22:26 +0100
- To: Pat Hayes <phayes@ai.uwf.edu>
- CC: fmanola@mitre.org, w3c-rdfcore-wg@w3.org
Just checking we are clear what is being renamed. M&S uses the term predicate
for a component of a statement. Thus a statement has three components:
a subject
a predicate
an object
The subject must (debatably) be a resource
The predicate must be a property
The object may be a resource or a literal.
The terms predicate and property in M&S mean different things. Are we losing
the distinction, or is this distinction just no longer applicable.
Brian
Pat Hayes wrote:
>> Frank:
>> I called it a "predicate" because that's the term used in the M&S. If
>> we've changed it officially, I must have missed it (where would this be
>> documented?).
>
>
> OK, let me make this a formal suggestion for an item.
>
> PROPOSED that:
> The things called 'predicates' in the M&S shall henceforth be called
> 'properties' (preferred) or 'relations'.
> This is in line with the standard usage in the description logic,
> database and formal logic communities, and is used in the DAML+OIL
> documentation. The term 'predicate' is deprecated as potentially
> misleading, since properties are not predicates in the sense that word
> is usually used in formal logic.
>
> Pat
Received on Monday, 22 October 2001 10:27:15 UTC