1. Registry Interfaces 1.1 Theresa Dower NAVO/STScI May 2016
IVOA Interoperability Meeting -- Stellenbosch

2. RI 1.1 Overview
Defines web interface for downloading registry contents in whole or partial updates
Defines publishing-only and searchable registries
NEW: describes IVOA registry ecosystem, Registry of Registries, and best practices for harvesting
NEW: does NOT reference any one required web interface for search.
May 2016
IVOA Interoperability Meeting -- Stellenbosch

3. RI 1.1 Status Current version: Working Draft
Send to PR after addressing session comments?
Current version:
(plus some RofR link changes in Volute, not yet rebuilt and re-submitted)
May 2016
IVOA Interoperability Meeting -- Stellenbosch

4. RI 1.1 Drivers for Change Drivers for this version change:
Remove reliance on specific, outdated technologies for search
Include Registry of Registries and harvesting architecture in a formal IVOA document (had previously only been a note)
May 2016
IVOA Interoperability Meeting -- Stellenbosch

5. Removing the obsolete
Removed entire section 2 (REQUIRING a particular interface for “fully searchable registry”)
ADQL 1.0 (deprecated)
XQuery
SOAP-based search interface (deprecated as a common practice in favor of REST)
May 2016
IVOA Interoperability Meeting -- Stellenbosch

6. Replacing the obsolete
New Section 5: Searching the Registry
Cites RegTAP as an example
Does not endorse any one particular search interface/technology
Registries may advertise various search capabilities as technologies and standards progress
May 2016
IVOA Interoperability Meeting -- Stellenbosch

7. Adding VOSI
Added requirement to provide VOSI endpoints:
CAPABILITY
Harvest, old and new search interfaces
AVAILABILITY
TABLES
Only relevant if RegTAP interface available? (for now)
May 2016
IVOA Interoperability Meeting -- Stellenbosch

8. Minor Cleanup: Doc Versions
Removed requirement for VOResource version number to match this document
May 2016
IVOA Interoperability Meeting -- Stellenbosch

9. Minor Cleanup: OAI
Added requirement for OAI (harvest) interface to support time in seconds
Optional in OAI-PMH standard
Simpler harvester/client operations
All existing registries in the RofR support this already
May 2016
IVOA Interoperability Meeting -- Stellenbosch

10. Minor Cleanup: OAI
Dropped the requirement on registries to not deliver any records that the OAI-PMH interface would consider deleted, when no temporal constraint is given
m= vs
Extra complexity for server software
Sometimes clients would want that information
May 2016
IVOA Interoperability Meeting -- Stellenbosch

11. Minor Cleanup: deletion
Clarified that the requirement to keep deleted records for six months only applies to registries claiming to hold records “transient”-ly
Added text encouraging registries to support deleted records.
Deletion support refers to general registry architecture; some individual interfaces like RegTAP can (or should!) ignore them
Not required
May 2016
IVOA Interoperability Meeting -- Stellenbosch

12. Minor Cleanup
Harvesting capability’s standard ID now contains version: ivo://ivoa.net/std/Registry#OAI-2.0
Follows general trend to versioning in IVOA capabilities
The OAI-PMH standard we are basing the harvesting interface on is at version 2.0 (for some time)
Not already widely in use (will be a reg provider change)
May 2016
IVOA Interoperability Meeting -- Stellenbosch

13. RofR & Best Practices
Added description of RofR and its purpose, plus process for adding registries to the RofR listing and searching.
This had previously been an IVOA note (Plante et al)
Largest change in the document: please review
May 2016
IVOA Interoperability Meeting -- Stellenbosch

14. RofR & Best Practices
Added process for adding a registry to the IVOA registry ecosystem, based on the Registry of Registries IVOA note.
In coordination with RofR transfer to CfA
Some simplified URLs (old versions will be maintained)
May 2016
IVOA Interoperability Meeting -- Stellenbosch

15. RofR & Best Practices
Added recommended process for discovery of registries and their resources using the Registry of Registries, based on the Registry of Registries IVOA note.
Query RofR for list of registries with set ivo_publishers
then
Query each listed registry with set ivo_managed
May 2016
IVOA Interoperability Meeting -- Stellenbosch

16. RofR & Best Practices Legacy issue:
RofR still lists “fully searchable” registries based on support for ADQL/Xquery/SOAP interface.
Suggestions for change?
May 2016
IVOA Interoperability Meeting -- Stellenbosch

17. Case of the Missing XSLT
One possible remaining todo in document .tex file:
Add an appendix with code for translation in OAI interface, converting
ivo_vor extension (how we keep our records) to
oai_dc default (required by the OAI-PMH 2.0 interface).
Note suggests Ray Plante had this available somewhere?
May 2016
IVOA Interoperability Meeting -- Stellenbosch