Spatial Identifier Reference Framework (SIRF) Realising the potential - - PowerPoint PPT Presentation

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Spatial Identifier Reference Framework (SIRF) Realising the potential - - PowerPoint PPT Presentation

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Spatial Identifier Reference Framework (SIRF) Realising the potential of SDI using spatial identifiers to link multiple information systems. International Cartographic Conference, Dresden Rob Atkinson | Paul Box | Laura Kostanski August 2013

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International Cartographic Conference, Dresden

Spatial Identifier Reference Framework (SIRF)

Realising the potential of SDI using spatial identifiers to link multiple information systems.

GOVERNMENT AND COMMERCIAL SERVICES THEME

Rob Atkinson | Paul Box | Laura Kostanski August 2013

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Today’s Presentation

  • The Vision
  • The Problem
  • A Spatial Identifier Reference Framework (SIRF)
  • Mechanisms
  • Status
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Vision Versions….

  • “Evidence based decision making”
  • Discovering and integrating data from multiple sources
  • because problems are multidimensional
  • geographic basis of issues and actions
  • geography is shared
  • Spatial Data Infrastructures
  • manage spatial data once, and share it
  • efficiency and efficacy
  • Semantic Web
  • machine interpretation
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access rights

The Linked Data Vision

Data about the world application The Web Object ID (URL) context

Magic

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Spatial identifiers describe ‘the Somewhere’

Spatial Data Infrastructure (SDI)

  • Fundamental component of spatial datasets
  • Used to reference data

Geospatial information

BPS‐ID Name GER ‘08 Tpop’10 003 Nusa Tenggara Barat 111.08 1,318,840 005 Nusa Tenggara Timur 112.09 335,805

Statistical information (Implicitly geospatial)

Spatial identifiers Bureau of Stats - 003

West Nusa Tenggara

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UNSDI Spatial Identifier Reference Framework | Paul Box

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“Distributed” references

Catchment ExtractionRate Storage 1123343 730 300 Internet How to ask for this entity How to deliver this entity Catchment Boundary Area Geometry 1123343 33535.4 151.3344,‐35.330…….

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One real world feature ‐ multiple representations

Multiple - names, identifiers, geometries, versions

Geospatial information

UNSTATS Name GRP’08 $ IND03 NTB 8,080 IND05 NTT 4,769 BPS‐ID Name GER ‘08 Tpop’10 003 Nusa Tenggara Barat 111.08 1,318,840 005 Nusa Tenggara Timur 112.09 335,805

Statistical information (Implicitly geospatial)

Spatial Identifier Reference Framework Gazetteer ID - 002234 Bureau of Stats - 003 Spatial Data Infrastructure (SDI) 7

UNSDI Spatial Identifier Reference Framework | Paul Box

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Gazetteer – a special case of Spatial Identifier

GAZETTEER

ID, placename(s), feature type, location

  • Official list of names
  • Related to mapping process

(toponymic)

  • Used for map lookup

Names are ambiguous One name – many places One place ‐ many names

 Australia, Australie, ايلارتسأ  Wollongong, ‘the gong’  Sydney, City of Sydney

Melbourne – locality – Victorian Gazetteer –Official Melbourne – municipal council boundaries – official

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discovery relevance access rights

  • CSIRO. UN Gazetteer ‐

Common Semantic Framework for the UNSDI

Barriers to use of common spatial references

Spatial feature dataset access mechanism format semantics identifier stability change citation application

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Is any platform going to work?

  • A single “big bucket”

doesn’t work (well enough)

  • Authority vs. coverage
  • Spatial Data Infrastructures are slow to emerge and hard to use
  • Informal data and Big Data increasingly important
  • Legacy systems using incompatible identifiers
  • Specialised systems needing specific views
  • Semantic Web unproven and unfriendly to existing systems
  • Linked Data has too much variability
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Spatial Identifier Reference Framework

  • Respect multiple views, authorities, usages
  • Better description of existing systems and

resources

  • Semantic Web and Linked Data for better

discovery

  • Provenance and authority linked to SDI where

available

  • Small set of extensions to various standards to

support interoperability of spatial identifiers

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http://id.unsdis/id/catchment/567 http://id.unsdis/id/catchment/567 URL: spatial data access URL: spatial data access URL: observation data archive access URL: observation data archive access URL: live data access URL: live data access representations Basic properties provenance URL: virtual data product URL: virtual data product

Identifier Architecture

Sensor Web (image OGC 2006) Spatial Data Infrastructure

WFS WCS

Spatial databases Services

Linked Data Web

Observation Archive (Data Warehouse)

Transactions Data Marts

Services

Application Reports

Computational Models

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Status

  • Testing with Australian and Indonesian gazetteers and

administrative boundaries, hydrological catchments, Open Street Map data

  • Ways to describe resources
  • Working services (machine interfaces)
  • (Very crude) HTML applications implementation
  • Testing federation across multiple nodes
  • Documentation and software being prepared for open release
  • CSIRO. UNSDI Gazetteer for Social Protection in Indonesia
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  • CSIRO. UNSDI Gazetteer for Social Protection in Indonesia
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Resource “graph”

  • CSIRO. UNSDI Gazetteer for Social Protection in Indonesia
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Thank you

For more information Rob.atkinson@csiro.au

GOVERNMENT AND COMMERCIAL SERVICES THEME