TECH GROUP

2006-02-23 - Day 3 - AM results

Recommendations indexed by priority number

7. Doc Exchange

TAPIR Recommended

8. Integrity / Extension

BM: List of concerns:

- Make schema smaller ==> BM

- Enumeration (Lists)

15. Extensibility

Build/manage list

How to update lists without having to change the schema

Not standardized with XML schema?

Bob will investigate

MD: Versioning

Version attribute used during processing

BM: Other option (with extension capabilities)

Extensibility options

- Change internal schema version

- Schema version attribute on root element

- Change target namespace

Maybe other solutions

MD: Recommend to have a closer look at how to link to external ontologies

10. Exclusion / Optional element

If mandatory ==> not valid if empty

11. Synonyms

Get list of synonyms

Build associations to resolve names

BM/MD: Support standards for nomenclature and taxon concepts

13. Update / Data Quality

MD: Done through annotations

No generic system

14. Data Use / Ownership

Eventually, GBIF will have to tackle this problem

of harmonizing metadata.

Metadata - Dataset

BM: may need ID/IDREF

Then efficiency question

Inherited metadata

When data from different providers is aggregated

we should have a mechanism to keep track of who provided what

==> envelope element

Try to combine several envelopes within the same XML document

17. Strong Typing

Bob's Homework

Define every structured item

Need a data type for every element/attribute with content

Consider adding pattern (regex) facets for strings that need parsing

18. Doc Instance / Integrity

Use XML Validation tools

Use Xerces

19. Doc Size

BM: No merit

MD: Compression available

(server will use it if the client supports it)

-- AnnieSimpson - 14 Mar 2006