The User-participated Geospatial
Web as Open Platform
Seokchan (Channy) Yun
channy@daumcorp.com
Daum Communications Corp.

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Top Sites in Dot-com Bubble
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Crash of Web Platform based on Software
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Why They did Succeed?
Vs.
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Web 2.0 is the name of Conference.
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Platform
JVM Web site
Interface
Java API Open API (XML)
Software
Java Application Data
Participators
Developer User, Small Biz.
Key Factor
API Lock-in Data Lock-in
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rd
3 Party
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So What is Where 2.0?
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Where 2.0 Conference
• O’reilly Media
• Every year / Over 800 participators
• Sponsors
MSN, AT&T, Outcast, Google, Yahoo, Akamai, sxip,
AskJeeves, Fenwick&West, Laszlo, Morfik, SocialText,
Newsgator
• Main Theme
Local Search and Advertising, Mobile, GeoIndex
GeoTagged Life and DIY Data Platforms,
Crowd Sourced Data and Realtime Data
Open Source GeoStack
Disaster Relief/Environment/NGOs:
Sensorweb and Geotargeting
• Technology
Geo Support in Web Application Frameworks:
Mapping APIs
GeoBrowsers
Protocols & Formats
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Where 2.0?
USGS, Landsat Base Map Google, Yahoo!, Microsoft
ESRI, MapInfo SDK Softwares Web Maps APIs
Topography, River, Layers Photo, Video, Tour Spots,
Building Blog
Outsourced digitizing Participators Web users
vendors
GML, WFS, WMS Standards GeoRSS, KML
Government, local GIS 3rd Party Mashup developers
vendors
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Principals of 2.0
• How the Web Succeed? HTML
Not Semantic Web (Machine-based Technology)
• How the Geospatial Web? Google Maps
Not ArcWeb (Proprietary-software Technology
• How to make Geospatial Web to Web?
Public Resources
Easy Participation
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Easy Participation of Alpha Users!
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The Status of Where 2.0
• Data Visualization
Google Earth, Yahoo Maps, MSN Virtual Earth, NASA World Wind
• Social Data
Social Location Mash-up
• The Needs for Standards
GML, KML, GeoRSS…
• Movement of Desktop
ESRI, GDAL, GLASS, UDIG
• Location Sensing
Plaze, Skyhook
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Change: Conventional GIS Vendors
• MapQuest
The largest U.S based web map service provider
OpenAPI Best service (2006)
• ESRI
The largest GIS vendors, Start-up to Web GIS.
First sponsorship for Where 2.0 2006
• Skyline
3D Modeling Company.
Patent issue with Google (Keyhole)
• Autodesk
Heading to Open Source (MapGuide Server)
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Map APIs : pros and cons
Pros Cons
Google Map First Ajax based brilliant looking map Only Javascript libray
International base map (Europe, Japan)
Detail world-wide aerial photos
Largest developer based APIs
Lots of hacks and mash-up
Yahoo! Map First external geocoding capability U.S. and Canada only
Very flexible and open API's Flyouts not quite as spiffy as Google
Rate limiting by IP instead of appID
GeoRSS support
Flash/Flex version available
AOL MapQuest Frist routing (driving directions) capability No smooth Ajax client (yet)
Geocoding capability Slow functional changes
Large users and big market share Weak documentations
Microsft Virtual Well documented and sample sites Low Performance
Earth Detail Building shape and 3D view
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Google Map API Code
<script type=\"text/javascript\"
src=\"http://www.google.com/jsapi?key=ABCDEFG\"></script>
<script type=\"text/javascript\">
google.load(\"maps\", \"2.x\");
// Call this function when the page has been loaded
function initialize() {
var map = new
google.maps.Map2(document.getElementById(\"map\"));
map.setCenter(new google.maps.LatLng(37.4419, -122.1419), 13);
}
google.setOnLoadCallback(initialize);
</script>
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HousingMap.com
Google Map Hack + Graglists
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Mapping Mash-up?
• Mashup Examples
Chicagocrime http://www.chicagocrime.org
World of Warcraft Map http://mapwow.com
Themed Maps http://justin.everett-church.com/ymaps/radarMaps.html
Flickr Maps http://www.sodascope.com/FlickrMapsExt
MSNBC News Map http://poly9.viavirtualearth.com/Poly9/MSNBC
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Google Maps + News Articles
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Google Maps : My Map
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What’s Open Standards?
• Open Standard
Data distribution with RESTful applications
Ex) Google Maps, Flickr, Del.icio.us, Amazon, Ebay et. al
Data exchage with XML specifications
Ex) RSS/Atom, Microformat, Attention.xml
• Basic of Open Standards
Common APIs to geospatial data
Easy to treat geospatial data from users to developers
Various resources and library
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What’s Open Source?
• Success of Open Source Software
Lightweight development framework for every developers
Ex) LAMP (Linux+Apache+MySQL+PHP), Ruby on Rails, Python
et. al
Foundation for User-driven Innovation
Ex) Firefox Extensions, RSS Aggregator, JSON et. al
Various tools for developer-participation
Ex) Wiki, Wordpress, Movable Type et.al
• Basic of Open Source Software
Voluntary developers participation
Code-contribution by community
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Open Source GIS
• OSGeo.org
Mapping Software and Map Data
• NASA World Wind
Open Source based 3D Geo Mapping
S/W
• Openstreetmap.org
GPS based map data aggregation
service.
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1. Web Mapping
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2. Desktop S/W and
Geospatial Library
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OpenStreetMap.org
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Creating Geo Data
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Publishing
Geo Press
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Platial
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Flickr Machine Tags + Map
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Aggregation/Search
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Open GeoSearch
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Consuming
Free Earth
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User-participation : Finding House
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User-participation : Responding Disaster
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Ex: Naver-Google Map Mashup
http://map.creation.net
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Give Easy GIS to Users!
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Thanks for your attention:
channy@creation.net
http://www.creation.net