Transcript EDIOS – Fresh Look

JRA1 Standards Development
 BODC leading with contributions from Technical Task Team
(TTT)
 Main Objective: Define and develop common standards for
 Communications and interoperability of the distributed platforms
 Metadata and data exchange
 Checking of data quality
 Standards are crucial to the success of SeaDataNet
 A prerequisite for all other SeaDataNet activities
JRA1 Standards Development
The work package consists of
 JRA 1.1 Co-ordination and delivery of reference
documents
 JRA 1.2 Common data management protocol
 JRA 1.3 Common vocabularies and ontologies
 JRA 1.4 Common transport and service protocols
 JRA 1.5 Content standards and profiles
 JRA 1.6 Links and dissemination to international
authorities
JRA1.1 Co-ordination and delivery of
reference documents
Make available on
SeaDataNet extranet
(www.seadatanet.org)
Extranet developed and
managed by IFREMER
Proper documentation
management (BSCW)
Includes version control
List server for group
mailings
Extranet deployment on
schedule
JRA1.2 Definition of a common tagging system
 Unique identification of each data set
 Definition must support duplicate data sets
 Data centres involved in joint projects may hold the same
data set
 “Duplicates” may differ because of different data policies
 Duplicates should be clear to end user
 Details of how to do this currently being explored
by the Technical Task Team
 Deliverables:
 Beta tagging/identification system (Dec 06)
 Validated tagging/identification system (Feb 07)
JRA 1.3 Common vocabularies and ontologies
 Started in SEASEARCH II as the Common Data Interface (CDI)
libraries
 Terminology: Libraries now referred to as Controlled
Vocabularies
 SeaDataNet will develop these much further
 TTT subgroup will be responsible for the content governance.
 BODC to provide the technical governance for SeaDataNet
 Delivered by “Web Services” (driven by Roy Lowry and NERC
Data Grid)
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Called by software agents and web applications
Allow community to query the vocabulary master copy directly
Support retrieval of both full or subsets of vocabulary lists
Centrally managed by BODC
JRA 1.3 Common vocabularies and ontologies
Example of a Web Service
BODC
Web Service
Client Interface
Unix Server
Tomcat/Axis
Java/JDBC
Web server
PERL: getlist
[‘P041’]
Apache
Database
XML Validator
Unix Server
Oracle
Vocab Tables
Application
Server
End
User
SeaDataNet
Partner
JRA 1.3 Common vocabularies and ontologies
 Ontologies
 Sophisticated mapping between vocabularies
incorporating relationships
 Initial development for parameter discovery vocabularies
(BODC, CF, GCMD)
 Delivered through a Web Service
 Deliverables
 Beta common vocabularies and ontology (Oct 06)
 Current status
 Vocabulary technical governance in place
 Beta Web Services under test at BODC
JRA 1.4 Common transport and service protocols
 SeaDataNet Version 1
 NetCDF content model and ASCII exchange
format
 Standard Controlled Vocabularies to describe
content
 SeaDataNet Version 2
 Data virtualisation using OGC and W3C
standards
JRA 1.5 Content standards and profiles
SeaDataNet Family of Directories
CDI
EDMED
EDIOS
CSR
EDMERP
XML schemas to be developed for metadata directories
 EDMED
(NA5, all TAs and JRA2)
 EDIOS
(NA5, all TAs and JRA2)
 CSR
(NA4, all TAs and JRA2)
 EDMERP
(NA7,all TAs and JRA2)
 CDI
(NA6,all TAs and JRA2)
JRA 1.5 Content standards and profiles
Data models and storage structures to be improved by
 Vocabulary harmonisation
 Enhanced data structures
 Improved procedures
XML schemas to be improved by
 Proper governance
 Better integration
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Based on ISO19115 and perhaps ISO19139 ?
 ISO 19115 – Content model
 ISO 19139 – XML schema – ties things down. Now publicly
available
Deliverables
 Beta XML metadata directory schemas (Sep 06)
 Validated XML metadata directory schemas (Feb 07)
In conjunction with MarineXML (driven by Roy Lowry, BODC)
JRA 1.6 Links and dissemination to international
authorities
 Standards, technologies and products to be made
available to international marine community,
including:
 IOC and MarineXML
 GEOSS, Marine Metadata Interoperability (MMI)
 Operational community (GOOS, EuroGOOS,
IOOS/DMAC)
 Planned dissemination mechanisms:
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Conferences
Workshops
Training
Publications
JRA1 Standards Development
Any questions?