International Virtual Observatory Alliance

Difference: ResourceMetadata (8 vs. 9)

Revision 92004-06-22 - RayPlante

  META TOPICPARENT 
  name="IvoaResReg"
- META TOPICPARENT
+  name="IvoaResReg"
-<
<
+This specification will define the minimal data about each resource in registry which must be maintained and queryable.

Should resource metadata be described using RDF? Just the name, Resource Description Framework, seems to fit the bill. Would make it easier to transition any metadata into an ontology described using OWL.


 Comments 
Anyone wanting to look into RDF can look at the RDF Primer, which is now in a new version (Working Draft 23 January 2003) -- TonyLinde - 28 Jan 2003

Another link to check out for RDF is Dave Beckett's Resource Description Framework (RDF) Resource Guide: it is huge -- TonyLinde - 28 Jan 2003



 Metadata prototyping efforts 
 

 Resource Metadata (folks working parallel efforts in this area are encourages to add pointers 	  below.) 
 VOResource 
 based on RM document by Hanisch et al.
  Current version: VOResource.xsd
  an example instantiation:  adil.xml
  Comments and illuminating figures
 
 
 
 

 Space-Time Metadata 
 Arnold's Space-Time Coordinates page describes the current model and includes a link to a DTD.
  The current version of the regions schema can be seen as a DTD.
 
 
 

 AstroGrid Registry 
 First cut description of AstroGrid Registry Structure
 
 

 Metadata Specifications 

Metadata specification efforts are under development within the RWG work package 3.  It has two components:
 

 core resource metadata concepts, independent of any encoding scheme.  See /twiki/bin/view/Main/WebHomeDocuments for the latest recommendation currently going through the IVOA Standardization process.  
 
 

 XML Schemas:  see IVOARegWp03#Specifications for latest versions
 

-- RayPlante - 15 Oct 2003

<-- 
 
 
 Set ALLOWTOPICRENAME = TWikiAdminGroup
 
 
-->
->
>
+ Resource Metadata 

Last updated: 22 June 2004 - RayPlante

Contents 
  Resource Metadata 
  Standard Specifications 
  Metadata Definition Documents  
  Resource Metadata (RM)
 
   XML Schemas 
  VOResource
   VODataService
   StandardsRegExt (VOStandard)
   Simple Services (SCS, SIA, SSA, SLA)
   ApplicationsRegExt (VOApplication)
   Other Extensions in Development
 
 
   Creating Registry Extensions
   Useful Links and Tools for Developers
   Deprecated versions
 
 


 Standard Specifications 

The standards for metadata used to describe resources in the VO come in two forms: prose documents that define the metadata concepts and XML Schemas used to encode them.  

 Metadata Definition Documents 
 

 IVOA Recommendation
  "Resource Metadata for the Virtual Observatory" v1.01
Robert Hanisch, Ed.
 

This document (euphemistically referred to as "RM") defines standard metadata concepts that describe resources, independent of any particular encoding format. It also describe the general resource model upon which the concepts are based.

This document is intended primarily for developers of new standards for encoding resource metadata.  The latest work on the RM standard is tracked via the RWP03Specs page.  

 XML Schemas 
 

 IVOA Working Draft
  VOResource v0.9 core schema and standard extensions
RayPlante, Editor
 

VOResource in general refers to a set of XML Schemas that includes a core schema (VOResource-v__X.X__.xsd) based on the RM Recommendation and a set of standard extension schemas that define particular types of resources. 

These schemas are intended for use by VO XML-based applications.  In particular, these schemas are used for supporting interoperable communication with resource registries.  

The latest work on the VOResource schemas is tracked via the RWP03Specs page.  This includes the latest emerging drafts:
 

 Internal Draft
  VOResource v0.10 core schema and standard extensions
RayPlante, Editor
 

 Useful Links and Tools for Developers 

More Coming Soon!
 

 Examples of VOResource documents can be found via the schema release pages: 
 VOResource v0.9
  VOResource v0.10
 
 
 

 vor2dc_v9.xsl:  XSL Stylesheet to convert VOResource v0.9 to OAI Dublin Core. 
 
 

 vomdoc-v0.3.xsl:  XSL Stylesheet for creating HTML documentation for VOResource v0.9 and its extensions.

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