Advisory Group Meeting 12 October 2005 The Clever Use of Metadata in eGovernment and eBusiness Recordkeeping Processes in Networked Environments

2 Outline Metadata re-use and Interoperability Issues Metadata Broker Development Service Oriented Architectures Web Services Technologies Implementing the Metadata Broker as a web service Project Deliverables and timeframe Feedback

3 Imagining automated metadata re-use Consumer Registry Finds service Service Descriptions Points to description Translation Service Describes service Locate service Exchange messages Source: Based on diagram from /

4 Web Management System Traditional recordkeeping architectures Records Management Application Archival Management Application Learning Object Portal Other Portals Archival Gateway Business Systems Desktop Applications

5 Recordkeeping metadata brokering Records Management Application Archival Management Application Subject Portals Community Archives Web Management Systems Archival Gateways and Desktop Applications Metadata Broker Business Information Systems

6 Recordkeeping metadata brokering (cont.) Records Management Application Archival Management Application Subject Portals Community Archives Web Management Systems Archival Gateways and Desktop Applications Metadata Broker Business Information Systems

7 Service oriented architectures Open systemsOpen standards Open communication protocols Service Oriented Architecture StandardsMetadata

8 Web services technologies Consumer UDDI Registry Finds service WSDL Service Descriptions Points to description Service Describes service Locate service Exchange messages - SOAP Source: Based on diagram from /

9 Translation Services CRKM Metadata Broker Aug 05 Metadata Registry Authoritative information on metadata schemas, metadata elements and crosswalks in human readable and machine processable forms Metadata Repository Machine processable representations of metadata schemas & crosswalks Temporary store of metadata instances for translation and transformation Crosswalk Compiler Outgoing metadata Request for Schema Schema information Registration information Incoming metadata Validation Services

10 Metadata broker as web services cluster Translation Service Web Service Layer Intranet Metadata Registry Web Service Layer AGEMS Request to translate AGEMS to RKMSCA AGEMS – RKMSCA Crosswalk Service Web Service Layer Metadata Broker Client Request the AGEMS – RKMSCA crosswalk RKMSCA

11 Layers of interoperability Layer 1 Transport and Exchange From: Thomas Baker et al., Principles of Metadata Registries, 2002 Layer 2 Representation e.g. XML, RDF Layer 3 Abstract e.g. Recordkeeping metadata standards

12 To make this happen …  Stop assuming existing standards are interoperable RKMS Date Created Transacted Registered AGLS Date Created Modified Valid Issued RKMS Identifier AGLS Identifier

13 To make this happen …  Rigorously define metadata interoperability in terms of element semantics, their value domains and encoding schemes  Develop concrete recordkeeping metadata standards based on dynamic metadata models with multiple entities  Develop machine processable versions of standards representing both the syntax and semantics

14 To make this happen …  Implement the metadata broker concept  Build operational web services to enable metadata translation  Re-engineer and re-position recordkeeping and archiving processes in line with a continuum view  Realise the vision – Create Once, Use Many Times

15 Project Deliverables Conceptualise and Build the Metadata Broker as a Web Service –Services in and out of scope –Metadata Registry Requirements –Registration interface –Validation Services Thesis contribution – investigating types of metadata interoperability. (Oct/Dec 2005)

16 Metadata Broker Service Web services Layer Metadata Registry Crosswalk Metadata StylesheetCrosswalkJavaObjectCrosswalkWebServiceCrosswalk RuleBasedCrosswalk Translation Service Web services Layer

17 Re-engineering work processes Test whether re-engineered work processes within a continuum framework can support optimal use of the Metadata Broker as a Web Service. What infrastructure must be available to the Web Service –Feedback to standard setters –Tools? –Impact on organisational work processes? (Late Nov 2005)

18 Evaluation Evaluate whether there is a business case supporting clever metadata reuse? (Jan/Feb 2006)

19 Conclusion Reporting Demonstrator (April 2006) Feedback and Discussion