® ® Establishing a Global Data Sharing Framework for Place Names Presentation to AAG, 25 February 2012 Raj Singh, PhD Director, Interoperability Programs.

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Presentation transcript:

® ® Establishing a Global Data Sharing Framework for Place Names Presentation to AAG, 25 February 2012 Raj Singh, PhD Director, Interoperability Programs

OGC ® POI “Core” lowest common denominator for interoperable POI data reviewed a huge number of popular POI formats: –USGS, NGA, AR, KML, NAVTEQ, Yelp, Yahoo!, Google, OS UK, etc. universally useful: not very feature-rich, but easy to understand and implement additional descriptiveness can come in community-specific profiles focus is on links to related information, and categorization today I’m showing XML, but JSON and RDF will likely “win” © 2012 Open Geospatial Consortium

OGC ® Descriptive Properties location: geography specifier label: name description: narrative text category: tags, keywords, etc. link: related items time: when the POI exists in the world © 2012 Open Geospatial Consortium

OGC ® Descriptive Property: category © 2012 Open Geospatial Consortium <category term="722110" scheme=" type="text/html" href=" restaurants <category term="rating:food" scheme=" href=" <category term="cuisine" scheme=" href=" category term: the unique identifier – aka tag (mandatory) scheme: URI identifier for the term’s definition. may be resolvable (optional) value: human-readable description (optional) href: URL to full definition. always resolvable (optional) type: MIME type of the href (optional) XML examples:

OGC ® Descriptive Property: link link term: relationship of link to the POI (mandatory) href: URL for linked content (mandatory) type: MIME type of href (mandatory) value: human-readable description (optional) author: basic attribution (optional) XML examples: © 2012 Open Geospatial Consortium <link term="related" href=" type="text/html"/> <link term="related" href=" type="text/html"/> <link term="image” href=" type="image/gif"/> Faneuil Hall, exterior: perspective view, Boston, MA Library of Congress

OGC ® Location Properties point, line, or polygon: GML 3.3 “compact encoding” -- simple! coordinate reference system (with lat/lon default) and/or address and/or spatial relationship to another POI © 2012 Open Geospatial Consortium

OGC ® Data Management Properties (metadata) id: unique identifier for the POI in the publisher’s system created/updated/deleted: applies to the POI record (not the actual place in the world—time property covers that) license: use restrictions, e.g. copyright © 2012 Open Geospatial Consortium

OGC ® Basic Example: City of Boston, MA USA Boston Boston is the capital of and largest city in Massachusetts, and is one of the oldest cities in the United States. Boston is regarded as the unofficial "Capital of New England" for its economic and cultural impact on the entire New England region. Wikipedia seat of a first-order administrative division © 2012 Open Geospatial Consortium

OGC ® different views of a place in time and space Newtowne 1638 … Cambridge Newtowne 1846 … East Cambridge and Cambridgeport are two towns that were merged to create the City of Cambridge in 1846… © 2012 Open Geospatial Consortium Newtowne Cambridge discussed in AAG 2011 one of the more difficult problems in geodata management is easy with POI format Cambridgeport East Cambridge

OGC ® Data Model © 2012 Open Geospatial Consortium

OGC ® OpenPOI DB reference implementation of the POI format free and open, always provides a Rosetta Stone for all POIs, any time, anywhere to include –OpenStreetMap –NGA, USGS, GeoNames future work –China Historical GIS –foursquare, freebase –governments, historians –self-service synchronization © 2012 Open Geospatial Consortium

OGC ® What should you do with the POI format? 1.have unique IDs for all your POIs 2.provide a public URL: to get at every POI in W3C POI format at least an ID and name please 3.adopt the link part of the data model to maintain references to related POIs add links to that public POI URL 4.be part of OpenPOI DB work with me to link and sync to your POIs! © 2012 Open Geospatial Consortium

OGC ® References OpenPOI DB: OpenPOI DB mailing list signup: announce announce W3C POI Home: W3C POI Wiki: GML 3.3: © 2012 Open Geospatial Consortium