AIHW Knowledgebase Redevelopment project Trish Ryan –Head, National Data Development Unit Australian Institute of Health and Welfare – Nigel Mercer –Consultant –

Metadata registry Australian Health, Community Services and Housing metadata registry ‘The Knowledgebase’ – developed 1997 Implementation using –Look for ‘Knowledgebase’

Project status Redevelopment project begun March 2003 –Scope and issues paper prepared –Stakeholder and user consultation process Two main outcomes / opportunities –Considerable upgrade to website, including significant help and assistance for metadata users and developers –Metadata redevelopment, including incorporation of new version of ISO/IEC 11179

Functional requirements for website Identification of types of users Support for: –Metadata users –Metadata developers –Metadata registrar (maintainers) –Metadata approvers

Functional requirements for website Education and guides for users and developers –About metadata –How to access and download metadata –How to develop and obtain approval/endorsement –‘Good’ metadata examples

Additional requirements Record users (optional) –Support users recording their interest in individual metadata items Direct links (urls) to metadata items Can store ‘rich’ text e.g. formatting, tables, diagrams etc.

Additional requirements Track changes for candidate items i.e. how is this version different from the current one? Publish different dictionaries and reports from the metadata content (ability to specify templates for extraction and formatting)

Metadata user Registrar Maintain metadata items Metadata developer Create metadata Upload candidates Interest in metadata item Record interest in metadata item Metadata item candidate Metadata item Metadata item update history Software tool Main KB functions www user KB user interface Extract for publications

Opportunity for metadata redevelopment Realisation of benefits obtainable from considerable metadata reorganisation –Include metadata structures from new –Expected to address a number of issues facing national data development committees

Current status Considering metadata structures (architecture) Assessing workload and process to redevelop metadata content Building examples to show national data committees impact of proposed structures

Object class Registration status Property Data Element Data Element Concept Value domain Classification system Metadata set

Project timetable February Sign-off on new structures –Includes agreement on redevelopment process February-June - Develop protocol (business rules) for metadata registry March-September - Redevelop content August-November - Develop software

Current issues Object classes and properties –Classification systems for –Existing ontologies Number of moving parts –Versioning of all metadata item types XML integration Existing content redevelopment process