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News and
Views: Geospatial Development Religions from digitalearth.org May 26, 2003 Recently Anselm Hook posted some provocative comments about geospatial developement issues to the GeoWankers list. Andy wrote: " [...] 'social mapping services' are not actually very much related to standards promoted by OpenGIS such as GML. However OpenGIS colored glasses are often used to evaluate these services. This is like using hubble to bird-watch... or trying to scale down a tank to make a bicycle... or requiring the use of C instead of Perl for all problems... Even the minimal GML profile is a bemoth. Also the OpenGIS thinking has a broadcast centric model not a peer to peer model; individual websites are not 'enriched' with geotags in an OpenGIS mode.[...]" Andy's concerns are legitimate about alternate approaches to building goespatial apps. There are huge problems with all of geo related sofware ecosystems he mentioned, But while we have our phasers set on 'flame' let us not forget OpenLocationServices, nor exclude Symbian, Brew, Palm, ESRI ArcEverything, Microsoft Mappoint.NET, or Java Jlocation. Sure, geoflavors of rss and rdf do indeed look promising for development spaces for new social apps, but don't say anything about layering and rendering combinations of spatial data.Can someone here can tell me what is the consensus process for adoption of GeoRSS/RDF? And if GML semantics are too heavy, then developers, and users won't use them, and none of the new wireless services or browser vendors will support it. Simple. But meanwhile, these are, indeed, exciting times. It's way too early to get too religious A lot of really smart people in a number of different but related geosoftware domains are building interesting toys and toolboxes for different purposes, that will inevitibly have to be combined , or at least interoperate to solve thousands of problems and create thousands of new apps we haven't even imagined yet. What's cool with www.geourl.org, and the <icbm> tag is Joshua Schacter has, succeded where others ( DNS LOC, .GEO, et.al.) have failed to create a grass roots adoption of an elegant and simple ad-hoc standard geocoding methodology for existing www docs. Let's geocode the whole Web! . I plan on being bored with the narrow, geocoded yellow page directories the wireless carriers and 'Big Portals' are planning for use. I can't wait for the day my agent data miners can scour a wild geocoded web, and the blog ecosystem for the exact spatial information that makes best sense for my precise frame of interest for combination in a dynamic layered interface. Meanwhile, Andy is right on that it's really a question of foreground, and background, My personal info is closest, on top, social information - a layer away, and then the background geocoded www, and on the bottom, away the old stovepipe gis webservices sitting behind soap/uddi, and crufty Microsoft apis. I might curse, but I want to retrieve and integrate the data on those servers,.My personal and social networks, do NOT exist in isolation like some old MS Office or Outlook apps, but will always exist in -context- of the richness of the geocoded web and vast spatial information behind the standards complient doors. If formal standards makes it easier for me to combine my personal experience -in layers- with complex and disparate data sets , then I say: " Go for it! Everybody" GIS, OGC, GML communities are not my enemies, but brethern in the battle to make spatial information interoperable, useful and fun. / Mike Liebhold |
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