Gis Foss: Alternatives To Cots Is It Time For A Change?

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GIS FOSS Alternatives to COTS Is it time for a change?

Blair Adams Chief Consulting Officer City and County of San Francisco April 5th, 2007

Agenda •

Why now? Maturity of FOSS



Virtual Appliances



Creative Commons Technological Perfect Storm?



Examples Resources 2

Why Now? •

Web 2.0 raises the web GIS bar Grandma can use it now



Open standards facilitate Service Oriented Architecture •

Web Feature Service (WFS), vector Web Map Service (WMS), raster

• •

Keyhole Markup Lookup (KML), vector

‘Legacy’ open source paves the path Apache most popular webserver since April 1996  •

60% websites use Apache today Netcraft Web Server Survey (January, 2007) 3

Maturity of FOSS •

Linux ~ University of Helsinki, 1991 Apache ~ NCSA, 1994



PostgreSQL ~ Cal 1970’s



PostGIS ~ Refractions Research, 2001 MapServer ~ University of Minnesota 



OpenLayers ~ OSGeo, 2006

4

Virtualization •

Virtual Machines Highly portable (i.e. location and architecture) •

Faster installation



Simplified replication of development and  production environments

Virtual Appliance •

Bundled pre­configured application stacks •

Removes complexity from open source  configuration

Example: •

MapSnack, June 2005  5

Creative Commons •



The power of numbers through collaboration Why continue to re­invent the wheel? Steve McDonald of Red Cross adds bass  ‘virtually’ to create Red blood cells • Jack and Meg White approve after the fact Skip the intermediaries The Internet is about collaboration

6

7

Technological Perfect Storm?



Facilitated by the popularity of Service Oriented  Architecture and Web 2.0: Virtual ‘Portability’ • Blade / SANs • Maturity of Open Source Rich thin­client • Reduced upfront costs (similar TCO) • Creative Commons Mash­ups • Power of numbers 8

Open Source Architecture

9 Source: Geonetwork-opensource.org

Twin Stacks

10

TCO •





Reduced cost barrier to entry TCO likely equivalent in long­run Reduced management and operations costs • Greater uptime, no license agreements,  invoices, forced updates, less virus prone,  reduced chance of obsolescence Built modular with integration in mind  No ‘data vaulting’ with proprietary formats 11

Examples •

Web 2.0 GIS Examples: •

http://dev.openlayers.org/sandbox/emanuel/animatedZoom   http://openlayers.org/dev/examples/editingtoolbar.html



http://openlayers.org/dev/examples/openmnnd.html



http://149.139.16.27/ka­map/ http://enplan.com/mapserver/kamap­cvs/index.html



http://www.flashearth.com/ 12

Resources •

Creative Commons (Roll your own ‘deeds’)  •

http://creativecommons.org/ http://mirrors.creativecommons.org/getcreative/







Virtual Machines / Appliances •

Console ~ http://www.vmware.com/download/server/ 



MapSnack ~ http://www.vmware.com/vmtn/appliances/directory

FOSS 2007 Conference (September 24­27, 2007, Victoria, BC) •



http://mirrors.creativecommons.org/reticulum_rex/

http://www.foss4g2007.org/ 

FOSS GIS downloads and installation guide •

http://geonetwork­opensource.org/ 13

Relevant Quotes •



Linus Torvalds •   "Because  the  software  is  free,  there  is  no  pressure  to  release it before it is really ready just to achieve some sales  target.  Every  version  of  Linux  is  declared  to  be  finished  only when it is actually finished, which explains why it is  so  solid.  The  other  reason  why  free  software  is  better  is  because  the  personal  reputation  of  the  developer  is  attached to every release." Bruce Perens (Business Week) on Open Source • ...it taps into the true motivation of programmers in a way  that  corporations  often  don't.  Programmers  are  like  artists...  They  like  to  showcase  their  best  stuff  for  their  peers. In open source, they can. But at most corporations,  their  best  work  is  hidden  behind  locked  and  guarded  doors. 14

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