1. Implementing the GEOSS Architecture using open standards
“The User and GEOSS Architecture” Workshop, 26 September 2006
George Percivall
Open Geospatial Consortium
© 2006, Open Geospatial Consortium, Inc.

2. GEOSS
GEOSS
A Global, Coordinated, Comprehensive and Sustained System of Earth Observing Systems
GEOSS is a global distributed system, including satellite observation systems, Global in situ networks and systems, And local and regional in situ networks.
GEOSS will deliver the benefits of EO to both data & information providers and consumers world wide.
Address the need for timely, quality, long-term, global information as a basis for sound decision making.

3. Requirements on GEOSS Contributed Systems
GEOSS 10 Year Implementation Plan
Section 5.3 Architecture and Interoperability
GEOSS Implementation Plan Reference Document
Section 5, "Architecture of a System of Systems"
GEOSS Requirements on Standards and Services, compiled by Eliot Christian, FGDC & WMO
Non-proprietary standards
Focus on interfaces
Interoperable formats, with metadata and quality
Services-oriented architecture
Describing service interfaces
Avoid non-standard data syntaxes
Register the semantics of shared data
Standard Search Service
Spatial Data Infrastructures
Public, network-distributed clearinghouse
© 2006, Open Geospatial Consortium, Inc.

4. Open Standards for Geospatial Interoperability
Open Geospatial Consortium (OGC)
Global, not-for-profit, international voluntary consensus standards organization
Over 315 industry, government, research and university member organizations
Founded in 1994, Incorporated in US, UK, Australia
OGC Mission: To lead the global development of open standards for geospatial services and to advance the formation of related market opportunities.
© 2006, Open Geospatial Consortium, Inc.

5. OGC Web Services Standards meet GEOSS Architecture Requirements
Defined on Internet standards: URLs, HTTP, XML
Simple: message-oriented, stateless, common elements
Standard data syntaxes: XML, JPEG2000, others
No implementations constraints: hardware/software neutral
Closely based on ISO 191XX series of standards
Additional architecture requirements to support GEOSS
Services are self-describing to support publish-find-bind
Multiple service types: catalog, portrayal, access, processing
Services chaining to support workflow
© 2006, Open Geospatial Consortium, Inc.

6. Major OGC Specifications for GEOSS
Data access standards for web services
Web Map Servers (WMS)
Web Feature Servers (WFS)
Web Coverage Servers (WCS)
As well as the:
Catalog Service for the (CSW)
Web Map Context (WMC)
Geography Markup Language (GML)
© 2006, Open Geospatial Consortium, Inc.

7. Reference Architecture Service Distribution
Geospatial Portal
Viewer Clients
Discovery Clients
Management Clients
Access Control
Exposed Services
Portal
Services
Internet
Data
Services
Portrayal
Services
Portrayal
Services
Portrayal
Services
Data
Services
Data
Services
Features
Gazetteer
Coverages
Symbology Mgmt
Maps
Styling
Coverages
Map Context
Catalog
Services
Catalog
Services
Catalog
Services
Data Discovery
Service Discovery
Catalog Update
Query Languages
© 2006, Open Geospatial Consortium, Inc.

8. OpenGIS Geography Markup Language
GML Encoding Specification
XML grammar for encoding geographic information.
Includes Features, Coordinate reference systems, Geometry, Topology, Time, Units of measure, etc.
Consistent with ISO series of standards. GML is also ISO 19136
Profiles of GML
Simple Features Profile of GML
CityGML
GeoRSS
GML Point Profile
Common CRSs
simple dictionary profile
GML in JPEG 2000 for Geographic Imagery Encoding
Numerous GML Application Schemas
© 2006, Open Geospatial Consortium, Inc.

9. Market Implementation
AED Graphics AG…AED SICAD…AutoDesk, Inc….Berit, a.s…Blue Marble Geographics…C-Plan AG…Cadcorp Ltd…Caris…Carmenta AB…CCGIS…Chesapeake Analytics Corp…Choibarti t.E…Christian Michelsen Research AS…Cogent Logic Corp…Compusult Ltd…con terra Applied Information Technologies Ltd…Cubewerx…DeLorme Publising, Inc…Demis bv…DM Solutions Group…eSpatial…ESRI…Finnish Geodetic Institute…Galdos Systems Inc…GDC… GE Energy…GEF-RIS AG…Genaware…GeoArctic Ltd…Geodan Holding BV…Geometry Party Ltd…Geoserver…Geotask AG…Global Energy Consulting Engineers Pvt. Ltd…GlobeXplorer…HDM…Hitachi Ltd…IBM Corp…InfoTech Enterprises Ltd…Innogistic Software Plc…INT, Inc…Interactive Instruments GmbH…Intergraph Corp…International Interfaces Inc…IONIC Software s.a…iter.dk…JAVA GIS Brazil…Laser-Scan…lat/lon…Luciad NV…M.O.S.S Computer Grafik Systeme GmbH…Mancke-Software…MapInfo Corp…MiraMon…MIT…Moxia Media Inc…Munisys Technologies Pty Ltc…NEC Geographic Products Inc…Naval Research Laboratory…Norkart…Novo Group…NTT Data Corp…ObjectFX Corp…Obvient Strategies…Offshore Systems Ltd…Oracle Corp…Pacific Geotech Systems Ltd…PCI Geomatics…Pixxures…Polexis, Inc…rasdaman…Refractions Research Inc…Safe Software…Shenzhen Careland Information Systems Co., Ltd…Skylab Mobilesystems…Snowflake Software…Social Change Online Pty. Ltd…SRI International…SRP GmbH…STAR INFORMATIC s.a…SuperGeo Techologies…SWBB GmbH…TatukGIS…Telcontar…The Carbon Project…University of Minnesota…US Federal Geographic Data Committee…others
OGC consensus specifications freely available
Several hundred commercial and open source products implement OpenGIS Specifications
Visit “Resources” tab for details on products that implement and/or are certified compliant with OGC standards.
© 2006, Open Geospatial Consortium, Inc.

10. Compatible SDI Standards Suite, “SDI 1.0”
OGC “SDI Standards Suite Version 1.0”- compatible suite of implemented geospatial standards and specifications
Criteria for inclusion
Open consensus standard
Evidence of implementation
Dependencies
Stability and conformance
SDI 1.0 facilitates description and acquisition of compatible technology to construct SDIs worldwide
To be presented at GSDI-9 in Chile
© 2006, Open Geospatial Consortium, Inc.

11. “SDI Standards Suite Version 1.0” - DRAFT
© 2006, Open Geospatial Consortium, Inc.

12. © 2006, Open Geospatial Consortium, Inc.
GEOSS Clearinghouse
GEOSS Clearinghouse
Publicly accessible, network-distributed clearinghouse,
Subject to GEOSS interoperability specifications
GEO Task AR-06-05
GEOSS Web Services (GWS) - proposed
Service Oriented Architecture for building on GEOSS Clearinghouse, GEOSS Portal and other GEO Tasks
Persistent network of publicly accessible services for demonstration, research, and operations consistent with interoperability arrangements in GEOSS
GWS as basis for demos and reference in GEOSS User Workshops
© 2006, Open Geospatial Consortium, Inc.

13. GWS Demos in OGC Networks
© 2006, Open Geospatial Consortium, Inc.

14. What to watch for in the OGC demo
How the components operate
Services are distributed; not a monolithic workstation application
Services are interchangeable; plug & play using standard interfaces
Adherence to GEOSS architecture requirements
Why it matters to GEOSS users
Easy, quick access to data: dramatic reduction in effort and time
Agile, flexible workflow allowing evaluation of different approaches
Enables collaboration: services accessed by variety of users
Pragmatic decision support
Thanks to Jeremy Morley, UCL, and the entire OGC member team for developing the demo
© 2006, Open Geospatial Consortium, Inc.

15. Questions & Comments George Percivall gpercivall@opengeospatial.org
Open Geospatial Consortium, Inc
© 2006, Open Geospatial Consortium, Inc.