Round 7

Document Overview

This document has not undergone any significant changes since the previous version of 21st April, 2009.

Syntax

This document has undergone only minor changes since the previous version of 21st April, 2009.

• The name of rdf:text was changed to rdf:PlainLiteral.
• Two of the examples were fixed.
• Some minor editorial changes were made.

Mapping to RDF Graphs

This document has undergone only minor changes since the previous version of 21st April, 2009.

• The RDF vocabulary for annotations was changed: owl:subject, owl:predicate and owl:object became, respectively, owl:annotatedSource, owl:annotatedProperty and owl:annotatedTarget.
• Several lists of syntax were updated to track a previous change in Structural Specification and Functional-Style Syntax.
• Two of the examples were fixed.
• Some minor editorial changes were made.

Direct Semantics

This document has undergone only minor editorial changes since the previous version of 21st April, 2009.

RDF-Based Semantics

This document has undergone some small changes since the previous version of 21st April, 2009.

• The range of owl:predicate was adjusted to remove undesirable inferences.
• The RDF vocabulary for annotations was changed: owl:subject, owl:predicate and owl:object became, respectively, owl:annotatedSource, owl:annotatedProperty and owl:annotatedTarget.
• The name of rdf:text was changed to rdf:PlainLiteral.
• Some minor errors and infelicities were corrected.
• Some minor editorial changes were made.

Conformance

This document has not undergone any changes since the previous version of 21st April, 2009.

Profiles

This document has undergone only minor changes since the previous version of 21st April, 2009.

• One grammar production was fixed in order to align it with the grammar in Structural Specification and Functional-Style Syntax
• The name of rdf:text was changed to rdf:PlainLiteral.
• A reference to logic programming has been added.
• Some minor editorial changes were made.

Primer

The rewrite and editing of this Working Draft has been completed since the previous version of 21st April, 2009.

New Features and Rationale

This document has undergone some small changes since the previous version of 21st April, 2009.

• Some sections were updated and some new features added.
• The RDF vocabulary for annotations was changed: owl:subject, owl:predicate and owl:object became, respectively, owl:annotatedSource, owl:annotatedProperty and owl:annotatedTarget.
• Some minor editorial changes were made.

Quick Reference Guide

This document has undergone significant presentation changes and a reorganization.

XML Serialization

This document has undergone only minor editorial changes since the previous version of 21st April, 2009.

ManchesterSyntax

This document has undergone only minor changes since the previous version of 21st April, 2009.

• Wording was added concerning precedence in parsing descriptions.
• Some minor editorial changes were made.

Data Range Extension: Linear Equations

This document has not changed since the previous version. It is being republished only simplify management of the OWL 2 document set.

PlainLiteral

This document has undergone several changes since the previous version of 21st April, 2009.

• The name of the datatype was changed from rdf:text to rdf:PlainLiteral, to clarify the role and purpose of the datatype
• The names of the builtins and their namespace were changed to match the change in the name of the datatype
• The introduction and section 4 were rewritten to reframe this datatype as having a special relationship to RDF plain literals.
• The notion of an entailment relationship between plain literals and rdf:PlainLiteral typed literals was removed, since rdf:PlainLiterals are now more clearly understood to not occur in RDF graph syntaxes.
• The characters used to delimit pairs was changed, since problems were reported with ⟨ and ⟩ in some browsers

W3C Invites Implementation of OWL 2

The OWL Working Group invites implementation of its OWL 2 Web Ontology Language. OWL 2 is a compatible extension to OWL 1, providing additional features for people using ontologies. (An ontology is a structured set of terms that a particular community uses for organizing data, such as "title", "author", and "ISBN" for data about books.) The OWL 2 document set contains 9 technical specifications and 4 instructional documents. The Recommendation-track specifications are now Candidate Recommendations, indicating that the Working Group and the W3C Director believe this is a good time for systems to begin adopting OWL 2 features on an experimental basis. The group maintains a list of implementations and encourages new information about implementations and other feedback to be sent to it comments address. The 4 instructional documents, which provide an introduction to OWL 2, are now at Last Call: overview , primer , new features and rationale, and quick reference. Finally, a new datatype used within both OWL and RIF, called rdf:PlainLiteral (formerly called rdf:text) is also a Candidate Recommendation. Learn more about the Semantic Web.