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Implementation of ISO/IEC 11179 in METeOR. Robyn Kingham Edwards. Overview. Introduce AIHW and METeOR Discuss structures and functionality of METeOR. Including private work spaces, multiple registration authorities and use of XML.
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Implementation of ISO/IEC 11179 in METeOR Robyn Kingham Edwards
Overview • Introduce AIHW and METeOR • Discuss structures and functionality of METeOR. Including private work spaces, multiple registration authorities and use of XML. • Review the implementation of ISO/IEC 11179 2nd edition in METeOR with a focus on differences and extensions. • Online demonstration of METeOR • Questions
The Australian Institute of Health and Welfare • Better information and statistics for better health and wellbeing. • Data standards underpin the data reported in the 100+ reports produced each year.
An online metadata registry for Health, Community Services and Housing. • An implementation of ISO/IEC 11179 version 2
Features of METeOR • System for creation, review, endorsement, publication and maintenance of metadata • Customised content management system • xml • version control & editing features • role-based views • Hosted online externally
Metadata functions • Discovery and access to metadata an export in XML • Creation of new metadata • Review (quality assurance) • Submission to registration authority • Processing through registration lifecycle • Maintenance and management
Data element Data element concept Value domain Classification scheme Object class Property ISO 11179-based building blocks
Person–height, total centimetres NNN Person–height Total centimetres NNN An example of 11179 in a METeOR data element Person Height
About the database • Customised XML-based content management system • Metadata item requirements are represented as a number of XML components • Not a relational database
1..1 property registry.propertyConcept 1..1 0..* 1..1 0..* objectClass dataElementConcept dataElement registry.objectClassConcept registry.conceptDataElement 0..* registry.valueDomainDataElement 1..1 0..1 0..* valueDomain registry.classificationScheme The functional METeOR model 0..* classificationScheme
Other relationships 0..1 0..1 0..* 0..* stewardOrganisation stewardOrganisation dataElement registry.steward registry.steward 0..* 0..* 0..* 0..* 0..* registry.relatedSeeAlso registry.relatedSupersedes 0..* 0..* registry.relatedFormedFrom metadataitem dataElement2 0..* dataElement3
Developer Visible to developers only Undefined Proposed Visible to developers & registrars only Recorded Registrar Candidate Visible to all users Standardisation pending Standard Retired Superseded Registration Lifecycle
Reg status Sector
Divergence from 11179 • Designed and built with the long-term goal of being a conforming application. • User functional requirements specified a number of significant differences and extensions to the metadata registry model provided by 11179.
Differences • Conceptual domain not implemented but under consideration for future development • Classification scheme implemented differently (as a related metadata item which provides the conceptual basis for some value domains) • Metadata item relationships (more extended than 11179 to accommodate navigation links such as supersession)
Differences cont. • Registration status values needed to match national data committee processes • Some ‘administered items’ not implemented as separate metadata items to ensure simplicity for registration authorities: • Context is an attribute of all metadata items • Representation class is an attribute of value domains
Extensions • Multiple registration authorities (capacity for a metadata item to be registered, optionally, by > 1 Registration Authority) • Data set specifications for grouping metadata items with additional info (sequence number, optionality etc.) • Object class mandatory (as building block for data element concept)
Extensions cont. • Properties mandatory (as building blocks for data element concept) • Glossary needed to define terms which did not form data elements (potential need for glossary documented in 11179 but very significant demand in METeOR)