Portals: Standards in Action David Danko ISO TC 211 Metadata Project Leader GIS Standards Consultant-ESRI.
Metadata Portals Portal gateway, place of entry Producers Advertise, expose products Share information about holdings Users Provide an understanding of data and services Perform efficient searches by requirements Discover data and services Determine fitness for use Acquire access information A Web "supersite" that provides a variety of services including Web searching, news, white and yellow pages directories, discussion groups, online shopping and links to other sites. TechWeb Encyclopedia 2
What Are People Looking For? Data for use in GIS Software GIS Services - Mapping, Geoprocessing Geospatial Applications Planned Data Acquisitions Events, Activities and Information People need a mechanism to quickly find the most useful data for a given purpose 3
Without an Organizing Process Can t t find data Unable to collaborate Use old or wrong data Produce redundant information Duplicate spending?????????? Missed Business Goals Increased Costs 4
Evolution of SDI GeoPortals Clearinghouses Service-oriented Application focus IT standards Interoperable File Transfer Ad hoc Data focus FTP transfer Bottom up System-oriented Data focus Geo-standards Top down 5
Benefits of a GIS Metadata Portal Provides Organized Access to Geospatial Resources Gateway to the spatial data infrastructure Provides Value to an Organization Collaboration - Publish, share, and disseminate data and GIS Web services across the enterprise SDI Searching Discover, connect to, and utilize GIS data and Web services Awareness Organize geospatial resources in one place for the enterprise Categorization Catalog GIS data and web services within the context needed Supports and Facilitates: Faster discovery Direct access and use Improvement of data quality and coverage Collaboration for new data collection 6
GIS Portal Goals Provide Provide Search, Discovery,, and Brokering of access to geospatial resources DataData Applications Web Web sites Documents 7
We Need an Integration Infrastructure Publishers Topography Hydrology Boundaries Users Geodetics Internet Map Services Maps Transportation Imagery GIS Portal Integrating Role Analysis 8
The Concept W3C Service Oriented Architecture* Service Service Requester Requester Client Find Find Bind Bind Interact Interact Service Description Service Service Broker Broker Publish Service Service Provider Provider Service Service Description *From Web Service Architecture, 14 Nov. 2002 9
Metadata Portal Service Architecture OGC Catalog Services (Z39.50 CS-W ebrim, ISO Metadata) Search Search Catalog Catalog and and Find Find Users Connect Connect and and Use Use Download Download and and use use OGC WMS, WFS, WCS, other services, data download, order, etc Portal OAI Protocol for Metadata Harvesting Publish GIS data and services Document in catalog ISO 19115 Metadata/ ISO 19139 Metadata XML Schema Implementation GIS Web Services Providers FTP GIS Data GIS Data GIS Data Providers GIS Data 10
Role-Based Capabilities Users Search Browse Connect Save Maps and Searches Interoperability Search Search Catalog Catalog and and Find Find End - Users Connect Connect and and Use Use Download Download and and use use Publishers Upload metadata Create metadata Manage metadata Portal Admin Review and Approve Metadata Organize Channels Organize Groups Portal Publish GIS data and services Document in catalog GIS Web Services Portals GIS Data FTP GIS Data Data Servers GIS Data 11
GIS Portal Spatial Search & Navigation View Users Supporting Data Sets Gazetteer Thesaurus Portal Categories Category Data Index Map Partners (Service broker) Metadata Publishers- Data & Service Providers 12
Metadata fuels the GIS Portal Catalog Services Data Models Metadata Activities/ Initiatives Maps Data Sets Metadata documents describe content and relationships 13
GIS Portal Toolkit Components 14
Enabling Technologies Portal Technology What s New Search Engine- Google JSR - 168 Spatial Toolkits Communities Marketplace New interoperability standard Portlet building blocks What this Means GIS Centric Specialized Search Uniform View Web Standard Google-like like Personalized 15
Supporting Standards Out of the Box WMS FGDC ISO 19139 GIS Portal Site Publish Search Map Viewer WFS/GML WCS ArcIMS WMC Server Components Open LS CSW Z39.50 OAI-PMH Web Folder ArcIMS Metadata Harvester Metadata Catalog Catalog Service SDE ArcIMS DB2, Oracle, SQL Server CSW Z39.50 OAI-PMH Web Folder ArcIMS Open LS 16
Portals truly standards in action A web super site Gateway to a spatial data infrastructure Providing Discovery Access Collaboration Improvements in quality and use Based on W3C Service Oriented Architecture Metadata for data, services, activities, data models anything geospatial Bringing the standards together: ISO ISO 19115 ISO ISO 19139 FGDC Metadata Dublin Dublin Core metadata W3C W3C SOA SR 168 OAI Metadata harvesting OGC OGC CS-W W ISO, ebrim,, Z39.50 WMSWMS WFS WCS WMCWMC OpenLSOpenLS... 17
Thank you 18