© 2006, Open Geospatial Consortium, Inc. Implementing the GEOSS Architecture using open standards Implementing the GEOSS Architecture using open standards George Percivall Open Geospatial Consortium “The User and GEOSS Architecture” Workshop, 30 July 2006

Helping the World to Communicate Geographically © 2006, Open Geospatial Consortium, Inc.2 Implementing GEOSS Architecture using open standards GEOSS Architecture Requirements OGC Web Services Architecture Open Standards Development What to watch for in the demo

Helping the World to Communicate Geographically © 2006, Open Geospatial Consortium, Inc.3 From Earth Observations to Societal Benefits

Helping the World to Communicate Geographically © 2006, Open Geospatial Consortium, Inc.4 Requirements on GEOSS Contributed Systems Requirements on Standards and Services, compiled by Eliot Christian, FGDC & WMO GEOSS 10 Year Implementation Plan –Section 5.3 Architecture and Interoperability GEOSS Implementation Plan Reference Document –Section 5, "Architecture of a System of Systems" 1.Non-proprietary standards 2.Focus on interfaces 3.Interoperable formats, with metadata and quality 4.Services-oriented architecture 5.Describing service interfaces 6.Avoid non-standard data syntaxes 7.Register the semantics of shared data 8.Standard Search Service 9.Spatial Data Infrastructures 10.Public, network-distributed clearinghouse

Helping the World to Communicate Geographically © 2006, Open Geospatial Consortium, Inc.5 OGC Web Services Architecture Defined on Internet standards: URLs, HTTP, XML Simple operations: message-oriented, stateless, common elements Implementations not constrained; hardware and software neutral Closely based on ISO 191XX series of standards Service types: catalog, portrayal, access, processing Services are self-describing to support publish-find-bind Services chaining to support workflow

Helping the World to Communicate Geographically © 2006, Open Geospatial Consortium, Inc.6 Major OGC Specifications for GEOSS The demonstration will illustrate (amongst others) the use of: 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)

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

Helping the World to Communicate Geographically © 2006, Open Geospatial Consortium, Inc.8 Publish, Find and Bind Pattern 2. Find 0. Code 1. Publish 3. Bind 4. Chain Developer Service Client Service Catalog Service

Helping the World to Communicate Geographically © 2006, Open Geospatial Consortium, Inc.9 “Chaining” Web Services For Decision Support … WCS (NASA Data Pool) WICS (Producer-C,Vendor-3) WCTS (Producer-B, Vendor-2) WFS (Producer-n, Vendor-x) Internet Web Servers OGC Interfaces Chaining creates Value-added products Example: Assessing Wildfire Activity Decision Support Client

Helping the World to Communicate Geographically © 2006, Open Geospatial Consortium, Inc.10 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: OGC Mission: To lead the global development of open standards for geospatial services and to advance the formation of related market opportunities.

Helping the World to Communicate Geographically © 2006, Open Geospatial Consortium, Inc.11 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 Visit “Resources” tab for details on products that implement and/or are certified compliant with OGC standards. Several hundred commercial and open source products implement OpenGIS Specifications OGC consensus specifications freely available

Helping the World to Communicate Geographically © 2006, Open Geospatial Consortium, Inc.12 GEOSS Clearinghouse –Publicly accessible, network-distributed clearinghouse, –Subject to GEOSS interoperability specifications –GEO Task AR GEOSS Web Services –Beginning with GEO clearinghouse, develop a GEOSS Web Services (GWS) network –Persistent network of a publicly accessible services for demonstration and research regarding interoperability arrangements in GEOSS –GWS as basis for demos in GEOSS User Workshops

Helping the World to Communicate Geographically © 2006, Open Geospatial Consortium, Inc.13 OGC members participating in GWS Canada –NRCan/GeoConnections Europe –EUSC Italy –IMAA/CNR South Africa –CSIR Other –IEEE –OGC United Kingdom –University of Nottingham –University College of London United States –CIESIN –George Mason University –ORNL –NASA –NCAR/UCAR –NOAA –Washington University

Helping the World to Communicate Geographically © 2006, Open Geospatial Consortium, Inc.14 What to watch for in the 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

Helping the World to Communicate Geographically © 2006, Open Geospatial Consortium, Inc.15 Questions & Comments George Percivall Open Geospatial Consortium, Inc