We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byLizbeth Prowse
Modified about 1 year ago
Page 1© Crown copyright 2006 Registry technology & case study implementation J. Tandy, D. Thomas - November 2006
Page 2© Crown copyright 2006 What is a registry? - definition A registry is an information system on which a register is maintained A register is a controlled list of information (ISO19135 Geographic Information – procedures for item registration) Registry
Page 3© Crown copyright 2006 Information hub When combined with a portal, the registry acts as a hub within the distributed data infrastructure … Registry Portal Information resources Providing an aggregated view of content from numerous, heterogeneous information resources
Page 4© Crown copyright 2006 Propagation of standards For content to aggregated into a single view, information resources (or services that expose them) must adhere to standards – WMO Core Metadata Profile ISO 191xx etc. Publication of standards factored into simple modules promotes sharing, re-use & (eventually) interoperability Registry Portal Information models Data standards Best practice Standards coordinator
Page 5© Crown copyright 2006 Focal-point Registry provides focal-point: Registry Portal Propagating best practice, standards and governance Discovering and exploiting information resources and services Discovery metadata for content offerings Service metadata for binding to information resources Discovery metadata Search & browse by exposing discovery metadata Service invocation Service metadata Data
Page 6© Crown copyright 2006 ebXML Registry-Repository ebXML Registry-Repository provides generic content and metadata management services Multiple components: Query manager & lifecycle manager Authentication & authorization Metadata registry Content repository RepositoryItems: XML, documents, images, etc. … RegistryObjects: describe RepositoryItems (metadata) ebXML RR Metadata registry Content repository
Page 7© Crown copyright 2006 ebXML Registry Information Model (ebRIM) ebRIM (ISO ) is the information model for the metadata registry Core information model Association information model Classification information model Provenance information model Service information model Event information model Cooperating Registries info. model Access Control information model Extensibility is most significant benefit Identifiable RegistryObject Slot ExtrinsicObject RegistryPackage Association Classification Service AdhocQuery Subscription … … (Incomplete)
Page 8© Crown copyright 2006 OGC Catalogue Services for Web (CSW) ebXML-RR exposes query & lifecycle management functionality via Registry Services (ebXML-RS) As specified, ebXML does not support geospatial or temporal queries Open Geospatial Consortium have published a set of profiles for ebRIM based on their Catalogue standard*: protocol binding recommended set of RegistryObject fields based on Dublin Core spatio-temporal discovery capability (* ISO profile also published) ebXML RR Metadata registry Content repository OGC CSW interface
Page 9© Crown copyright 2006 Oceans Portal – case study The Oceans Portal provides key infrastructure components to support online discovery and access to marine information within Australian jurisdictions It comprises of the following main components: A portal application (multiple entry-points to catalogue) A catalogue (registry – OGC CSW profile of ebRIM) Interoperable data and services (content offerings) Online resources exposed by web-based portal, ranging from simple documents and web links through to complex, queryable datastores
Page 10© Crown copyright 2006 Registering content in the Oceans Portal ebXML RR Metadata registry Content repository OGC CSW interface Data provider Registry client Publish static ‘metadata’ records via registry client: harvest control file service bindings custodian classification(s) * finder * binder * Where possible, the data provider is encouraged to re-use existing metadata * optional Volatile metadata harvested directly from service as specified by ‘harvest control file’ – ensures content offering is valid! Data access service
Page 11© Crown copyright 2006 The discovery model The portal provides a general purpose discovery model that will work for all types of resources, from large structured databases supporting many different queries to single documents. Discovery is based on the following principles: Iterative, incremental filtering of results based on refinement of search parameters Concurrent browse and search User-friendly exposure of underlying information model, clear presentation of schemes used to classify content Ability to create re-usable ‘search links’; e.g. for publication on homepage
Page 12© Crown copyright 2006 Search ‘axes’ – GCMD topic & Species tax.
Page 13© Crown copyright 2006 Search ‘axes’ – spatial extent
Page 14© Crown copyright 2006 Search ‘axes’ – searchable metadata ebXML RR Metadata registry Content repository OGC CSW interface Classification Controlled vocabularies Searchable metadata elements The ‘finder’ is a query model for accessing content in the registry
Page 15© Crown copyright 2006 Example – Sea Surface Temperature (1) Search for ‘temperature’ within the topic browser … Select ‘Sea Surface Temperature’ from results set …
Page 16© Crown copyright 2006 Example – Sea Surface Temperature (2) Select a known area; ‘Great Barrier Reef’ … could enter coordinates … But, I want to refine my search further …
Page 17© Crown copyright 2006 Example – Sea Surface Temperature (3) Select ‘most recent SST analysis’ from drop-down list … Only one result set … ask for ‘more info’ then ‘add to map’
Page 18© Crown copyright 2006 The data access model Having discovered content of interest, a user is able to ‘bind’ to the content … A ‘binder’ is a Data Access Query Model (DAQM) used to define and present binding options: service location protocol message structure permissible / appropriate values Where possible, terms from the discovery phase (finder) are propagated through to the binder, ensuring simple, intuitive transition from discovery to access Default binders include: WMS basic, WMS time, WFS, Document, Weblink and Event
Page 19© Crown copyright 2006 Example – Sea Surface Temperature (4) Data access request processed ‘transparently’ … search parameters used to complete the service invocation – WMS-basic in this case
Page 20© Crown copyright 2006 Conclusions The Oceans Portal provides an excellent example of how an ebRIM registry can be used to underpin a spatial data infrastructure. The capabilities provided overlap significantly with those required for WIS. Oceans Portal is an extensible, flexible infrastructure that can grow and evolve as new requirements, content and services emerge. The Oceans Portal is a strong candidate for use as the basis of a GISC-registry, providing proven capability whilst decoupling the registry & discovery portals from the underlying data services themselves.
Page 21© Crown copyright 2006 Questions & Answers
Page 22© Crown copyright 2006 THREDDS THematic Realtime Environmental Distributed Data Services Offers significant utility for exposing ‘earth-science’ datasets Questionable extensibility: THREDDS ‘discovery’ metadata record (similar to ebRIM RegistryObject) lacks extension points to add custom fields Lack of ability to browse (& realise) non-hierarchical relationships between entities; although noted that hierarchies are user / community defined & a dataset may appear in (be classified by) more than one hierarchy Limited bindings to data access services The end of THREDDS? No … THREDDS catalogues could be used to expose information resources that are aggregated within a principal ebRIM registry THREDDS and ebRIM are seen to be complimentary
The SLIP Metadata Catalogue Mike Bradford SLIP-EF Business Sponsor Department of Land Information 14 September 2006 © Copyright Department of Land Information,
GEOSS Common Infrastructure: A practical tour Doug Nebert U.S. Geological Survey September 2008.
Part of the Cronos Group 4C/kZen 4 th EcoTerm meeting, Vienna, April 18, 2007 Jef Vanbockryck Research & Development “Risk Assessment ontologies and data.
OASIS ebXML Registry Standard Open Forum 2003 on Metadata Registries 10:30 – 11:15 January 20, 2003 Kathryn Breininger The Boeing Company Chair, OASIS.
The Earth Information Exchange. Portal Structure Portal Functions/Capabilities Portal Content ESIP Portal and Geospatial One-Stop ESIP Portal and NOAA.
ESIP & Geospatial One-Stop (GOS) Registering ESIP Products and Services with Geospatial One-Stop.
OGC Catalog Service for the Web (CS/W): experience in NASA John D. Evans, Ph.D. NASA Geosciences Interoperability Office (GIO) Earth.
CGI – GeoSciML Testbed 3 Status for BRGM Jean-Jacques Serrano.
OGC Catalog Services Overview: CS/W, ebRIM, Service Profiles, Metadata & Metametadata OGC - OGF Workshop Joshua Lieberman Traverse Technologies Inc. February.
GEOSS ADC Architecture Workshop Clearinghouse, Catalogues, Registries Doug Nebert U.S. Geological Survey February 5, 2008.
IPDA Registry Definitions Project Dan Crichton Pedro Osuna Alain Sarkissian.
Metadata and Geographical Information Systems Adrian Moss KINDS project, Manchester Metropolitan University, UK
GCI Architecture GEOSS Information System Meeting 20 September 2013, ESA/ESRIN (Frascati, Italy) M.Albani (ESA), D.Nebert (USGS/FGDC), S.Nativi (CNR)
XML Registries Source: Java TM API for XML Registries Specification.
Where next…. Stakeholder workshop, 29 Jan To the end of the project.
Bavarian Agency for Surveying and Geoinformation AAA - The contribution of the AdV in an increasing European Spatial Data Infrastructure - the German Way.
Web-based Portal for Discovery, Retrieval and Visualization of Earth Science Datasets in Grid Environment Zhenping (Jane) Liu.
AUKEGGS Architecturally Significant Issues (that we need to solve)
1 Using the GEOSS Common Infrastructure in the Air Quality & Health SBA: Wildfire & Smoke Assessment Prepared by the GEOSS AIP-2 Air Quality & Health Working.
VO Sandpit, November 2009 CEDA Metadata Steve Donegan/Sam Pepler.
GEOSS ADC Architecture Workshop Break-out summary: Clearinghouse, Catalogs, and Registries Doug Nebert U.S. Geological Survey February.
1 OGC Web Services Kai Lin San Diego Supercomputer Center
1 Schema Registries Steven Hughes, Lou Reich, Dan Crichton NASA 21 October 2015.
Page 1 CSISS Center for Spatial Information Science and Systems IIB and GCI Meeting CSR Architecture and Current Registration Status Prof. Liping Di Director.
V-GISC Presentation – ET_WISC – Geneva - February v-GISC key functionalities ET_WISC meeting 2-5 February 2010 Jean-Pierre Aubagnac, Jacques Roumilhac.
The NSDL Registry Diane Hillmann Jon Phipps. What We’re Doing Received an NSF grant in Oct. 2006, to: Register metadata schemas, vocabularies, application.
OneGeology-Europe - the first step to the European Geological SDI INSPIRE Conference 2010, Session Thematic Communities: Geology Krakow, June 24 th 2010.
GEOSS Common Infrastructure: A Practical Tour Doug Nebert U.S. Geological Survey AIP-3 Kickoff March 2010.
® © 2006 Open Geospatial Consortium, Inc. OGC Catalog CEOS WGISS September 2006 Chuck Heazel
1 WMO Information System (WIS) and the Next Generation of Worldwide Weather Data Exchange by: Robert Bunge (August 2013)
Registries, ebXML and Web Services in short. Registry A mechanism for allowing users to announce, or discover, the availability and state of a resource:
Status of upgrading CDI service (user interface, harvesting via GeoNetwork, CDI interoperability options following SeaDataNet D8.7) By Dick M.A. Schaap.
CWIC Developers Meeting January 28 th 2014 Calin Duma CSW and OpenSearch from the CWIC Start client perspective.
Core Task Status, AR Doug Nebert September 22, 2008.
Geospatial One-Stop A Federal Gateway to Federal, State & Local Geographic Data
Matthew Cechini Raytheon - EED ID: IN31C-07. ECHO Metadata Overview Introduction Problem Space Solutions ISO Lessons Learned – Perceived.
EbXML Registry and Repository Dept of Computer Engineering Khon Kaen University.
Sept 19, Provides a common set of terminology and definitions A framework for describing resources and processes Enables computer based interoperability.
Architectures for Data Access Services Practical considerations for design of discoverable, reusable interoperable data sources.
Introduction to Geospatial Metadata – FGDC CSDGM National Coastal Data Development Center A division of the National Oceanographic Data Center Please .
Describing resources II: Dublin Core CERN-UNESCO School on Digital Libraries Rabat, Nov 22-26, 2010 Annette Holtkamp CERN.
JISC Information Environment Service Registry (IESR) Ann Apps MIMAS, The University of Manchester, UK.
Vers national spatial data infrastructure training program Value of Metadata Introduction to Metadata An overview of the value of metadata to.
Metadata: Its Functions in Knowledge Representation for Digital Collections 1 Summary.
Requirements for Epidemic Information Management Farrukh Najmi XML Standards Architect Sun Microsystems
Europe’s Information Society eContentplus OrléansWP6 1st Coordination and progress meeting Technical information OGC WMS – WFS – CSW.
1 Registry Services Overview J. Steven Hughes (Deputy Chair) Principal Computer Scientist NASA/JPL 17 December 2015.
Proposed update of Technical Guidance for INSPIRE Download services based on SOS Matthes Rieke, Dr. Albert Remke (m.rieke, 52°North.
© 2017 SlidePlayer.com Inc. All rights reserved.