- From: Miles, AJ \(Alistair\) <A.J.Miles@rl.ac.uk>
- Date: Thu, 31 Mar 2005 12:46:46 +0100
- To: <public-esw-thes@w3.org>
-----Original Message-----
From: public-swbp-wg-request@w3.org
[mailto:public-swbp-wg-request@w3.org]On Behalf Of Thomas Baker
Sent: 30 March 2005 17:05
To: SW Best Practices
Subject: [PORT] SKOS maintenance policy - 1/2 ("minor errata")
I was tasked with reviewing the maintenance policy of the
SKOS Core Vocabulary Specification, W3C Editor's Working
Draft of 2005-03-24 [1].
The review encompasses three sections: Status of this Document,
Introduction, and Policy Statements. These are appended below
as clear text, in their entirety, interspersed with comments.
This posting is the first part of a two-part review. It is
limited to pointing out a few editorial errata. Substantive
issues will be discussed in the second posting.
Tom
[1] http://www.w3.org/2004/02/skos/core/spec/2005-03-24
-----
Minor errata:
| Status of this Document
|
| This section describes the status of this document at the
| time of its publication. Other documents may supersede
| this document. A list of current W3C publications and the
| latest revision of this technical report can be found in
| the W3C technical reports index <http://www.w3.org/TR/>
| at http://www.w3.org/TR/.
|
| This document is published by the Semantic
| Web Best Practices and Deployment Working Group
| <http://www.w3.org/2001/sw/BestPractices/>, part of the W3C
| Semantic Web Activity <http://www.w3.org/2001/sw/>.
|
| This document is a W3C Editor's Working Draft and is expected
| to change. The Working Group intends this document to
| result in a W3C Working Group Note. The group has discussed
| the potential for SKOS to evolve into possible future
| recommendation track work items, and would value feedback on
| the level of formal standardization that is appropriate for
| SKOS-like technology. While the Working Group expectation is
| that SKOS will become a W3C Working Group Note, previous W3C
| Groups have reorganised their deliverables based on deployment
| experience and feedback from the W3C Membership.
|
| This document is an Editor's Working Draft. We encourage
| public comments. Please send comments to public-swbp-wg@w3.org
| <mailto:public-swbp-wg@w3.org?subject=SKOS-Comment> [archive
| <http://lists.w3.org/Archives/Public/public-swbp-wg/>] and
| start the subject line of the message with "comment:"
Missing full stop at end of sentence.
| Publication as a Working Draft does not imply endorsement
| by the W3C Membership. This is a draft document and may be
| updated, replaced or obsoleted by other documents at any
| time. It is inappropriate to cite this document as other than
| work in progress.
..
| Introduction
|
| SKOS stands for Simple Knowledge Organisation System. The name
| SKOS was chosen to emphasise the goal of providing a simple
| yet powerful framework for expressing knowledge organisation
| systems in a machine-understandable way.
|
| SKOS Core provides a model for expressing the basic structure
| and content of concept schemes (thesauri, classification
| schemes, subject heading lists, taxonomies, terminologies,
| glossaries and other types of controlled vocabulary).
|
| The SKOS Core Vocabulary is an application of the Resource
| Description Framework (RDF). RDF provides a simple data
| formalism for talking about things, their properties,
| inter-relationships, and categories (classes). Using RDF
| allows data to be linked to and/or merged with other
| RDF data by semantic web applications. See RDF Concepts
"Semantic Web" - in uppercase? (Does the BPD WG have a
position on this?)
| <http://www.w3.org/TR/rdf-concepts/> for an overview
| of RDF, RDF Semantics <http://www.w3.org/TR/rdf-mt/>
| for its formal mathematical basis, and RDF Syntax
| <http://www.w3.org/TR/rdf-syntax-grammar/> for details of
| the RDF/XML document format used to exchange RDF data.
|
| The SKOS Core Vocabulary is itself formally
| defined using RDF and OWL [OWL]. The resource
| http://www.w3.org/2004/02/skos/core.rdf contains the definitive
| SKOS Core Vocabulary RDF/OWL description.
|
| This specification is intended to provide the authoritative
| human-readable account of the SKOS Core Vocabulary, and
| to reflect the state of the of SKOS Core Vocabulary at the
| time of publication. The content of the term summary tables
| in this specification is generated [SRC] from the SKOS Core
What is "[SRC]" -- a reference, to be added, to an XSLT script?
| Vocabulary RDF/OWL description on the date of publication of
| this document.
|
| Because the SKOS Core Vocabulary may change (see Change
| Policy Statement below), there may be inconsistencies
| between this document and the SKOS Core Vocabulary RDF/OWL
| description. The latest version of the SKOS Core Vocabulary
| Specification <http://www.w3.org/2004/02/skos/core/spec/>
| should accurately reflect the current state of the SKOS Core
| Vocabulary RDF/OWL description, although there still may on
| occasion be short periods (eg. during Web site publication)
| during which there are minor inconsistencies.
|
| Although the SKOS Core Vocabulary RDF/OWL description is not
| itself a W3C Technical Report, it is (at least for the lifetime
| of the Semantic Web Best Practices WG) being managed with the
| intent of being consistent with this document, as well as with
| other supporting materials published as W3C Technical Reports.
..
| Policy Statements
|
| N.B. The Policy Statements described in this specification are
| a best effort representation of the Working Group's initial
"best-effort" - with hyphen (because used as an adjective phrase).
| thinking and intent, and are subject to the caveats described
| in the Status of this Document section. It is intended that
| this warning be removed after further discussion in subsequent
| iterations of this working draft. Also note that control of
| the SKOS Core namespace will revert to W3C control once this
| WG's charter expires.
|
| Naming
|
| The URI for the SKOS Core Vocabulary itself is:
|
| http://www.w3.org/2004/02/skos/core
|
| The URI for a class or property in the SKOS Core Vocabulary is
| constructed by appending the local name for that property or class to
| the URI http://www.w3.org/2004/02/skos/core#. E.g.
|
| http://www.w3.org/2004/02/skos/core#Concept
| http://www.w3.org/2004/02/skos/core#prefSymbol
|
| The local name of a class always starts with an uppercase
| character. Where the local name is comprised of multiple
| concatenated words, the leading character of each word will
| be an uppercase character. E.g.
|
| Concept
| ConceptScheme
|
| The local name of a property starts with a lowercase
| character. Where the local name is comprised of multiple
| concatenated words, the leading character of the second and
| each subsequent word will be an uppercase character. E.g.
|
| subject
| prefLabel
| isPrimarySubjectOf
|
| Persistence
|
| This document, the SKOS Core Guide, the RDF description of
| the SKOS Core Vocabulary, and the classes and properties of
| the SKOS Core Vocabulary are all declared to be persistent
| resources, as defined by the persistence policy at
| http://www.w3.org/Consortium/Persistence.
|
| Change
|
| Changes to SKOS Core classes and properties may
| occur. All changes are reported on the SKOS Change Log
| <http://esw.w3.org/mt/esw/archives/cat_skos_changelog.html>.
|
| Each class or property is assigned a term status value,
| which indicates the stability of the resource, and the types
| of modification that are allowed [DCMI Namespace]. A class
| or property may take one of three term status values:
|
| unstable
|
| The term is unstable, and feedback is welcomed on it's
"its"
| current form and utility (analogous to 'alpha' release
| in software development). It may currently be poorly
| defined. its meaning and/or form may be expected to change
"Its"
| at any time. Do not implement mission critical systems
"mission-critical"
| that depend on this term persisting in its current form.
| (Changes corresponding to DCMI class A, B or C may occur).
|
| testing
|
| The term has gone beyond the raw proposal stage, and is
| undergoing testing (analogous to 'beta' release in software
| development). This term may still change in response to
| feedback from testing, although it may be expected not to
| undergo any radical change. The cost to early implementors
| of changing the term will be considered, however the
| goal of achieving wider interoperability and long-term
| stability may override those considerations. (Changes
| corresponding to DCMI class A or B may occur)
Missing full stop.
|
| stable
|
| No substantial (meaning changing) alterations will take
"(i.e., meaning-changing)" is clearer. (Otherwise, one might
understand it to mean "(meaning 'changing')").
| place. Implementors can expect the term to persist in
| its current form indefinitely. (Changes corresponding to
| DCMI class A may occur)
Missing full stop.
| New classes or properties may be added to the SKOS Core
| Vocabulary at any time (changes corresponding to DCMI class D).
|
| A class or property at any of the above status levels may be
| marked as deprecated, in which case instructions will be given
| on what to use in its place. A deprecated class property may
| be expected to remain unchanged indefinitely.
|
| Maintenance
|
| The SKOS Core Vocabulary is hosted and maintained by W3C. At
| the time of writing, W3C has delegated management of the SKOS
| Core namespace to the the Semantic Web Best Practices WG, whose
Delete extra "the".
| chairs have in turn have delegated these responsibilities to
| the editors of this specification (Alistair Miles and Dan
| Brickley). The Working Group is committed to establishing
| clear expectations around the management of RDF vocabularies,
| through documentation of process and maintenance policies.
| This is itself an evolving process. Specifically, this document
| is itself situated within the W3C Process, and may change and
| evolve in the light of feedback on SKOS Core and on the SKOS
| Core policy statements. It should be noted that claims made
| by the Working Group using the (experimental) persistence
| and change terminology employed here have as their scope
| the currently chartered Working Group. They have only draft
| status within the wider W3C Process. W3C has not delegated
| to the WG any authority to make binding commitments on behalf
| of W3C beyond those implicit in the formal W3C Process.
|
| The Working Group is committed to a public, consensus-driven
| design environment for SKOS Core, and to this end conducts
| SKOS-related discussion in public, in particular drawing on
| feedback from the Semantic Web Interest Group mailing list
| public-esw-thes@w3.org.
--
Dr. Thomas Baker Thomas.Baker@izb.fraunhofer.de
Institutszentrum Schloss Birlinghoven mobile +49-160-9664-2129
Fraunhofer-Gesellschaft work +49-30-8109-9027
53754 Sankt Augustin, Germany fax +49-2241-144-2352
Personal email: thbaker79@alumni.amherst.edu
Received on Thursday, 31 March 2005 11:46:48 UTC