10 may 2005unsdi workshop - fao-hq - italy free and open source software (foss) & opensdi jeroen...
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Free and Open Source Free and Open Source Software (FOSS)Software (FOSS)
&&OpenSDIOpenSDI
Jeroen TichelerJeroen Ticheler
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
ContentContent
What is Software?What is Software? What is Free and Open Source What is Free and Open Source
Software?Software? Benefits and constraints of FOSSBenefits and constraints of FOSS OpenSDIOpenSDI ConclusionsConclusions
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
What is Software?What is Software?
Instructions that make hardware Instructions that make hardware workwork
Programmers write scripts that can Programmers write scripts that can be understood by people and by be understood by people and by compilers: the source codecompilers: the source code
Compiled software canCompiled software cannot be fixed or adaptednot be fixed or adaptedto user needsto user needs
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
What is Software?What is Software?
A key property is that it can be A key property is that it can be infinitely copied without any lossinfinitely copied without any loss
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Open Source versus Open Source versus Closed Source SoftwareClosed Source Software
Most prominent exampleMost prominent example
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Open Source versus Open Source versus Closed Source SoftwareClosed Source Software
Source code is often the most Source code is often the most secret propertysecret property
Open Source software provides Open Source software provides access to the source code of an access to the source code of an applicationapplication
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Think of Source Code as LEGOThink of Source Code as LEGO®® PiecesPieces
LEGO® Metaphor as used in “Towards a Free and Open Source Spatial Data Infrastructure.”C. Holmes et. al. - 2005
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
You Can Build New You Can Build New ConstructionsConstructions
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
These Might Be Simple These Might Be Simple ConstructionsConstructions
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Or More Complex OnesOr More Complex Ones
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Much depends on the Much depends on the usersusers
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
You can use a solid basisYou can use a solid basis
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
And repaint it, changing And repaint it, changing the look and feelthe look and feel
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
An ExampleAn Example
OpenOffice* was translated into OpenOffice* was translated into Swahili in four months in Tanzania.Swahili in four months in Tanzania.
The project leader said:The project leader said:º "we clearly show that with free and "we clearly show that with free and
open source software we can do in open source software we can do in four months what proprietary four months what proprietary software has never done for the software has never done for the Swahili speakers."Swahili speakers."
**A FOSS alternative to Microsoft OfficeA FOSS alternative to Microsoft Office
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Or You Could Go Much Or You Could Go Much FurtherFurther
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
UNEP’s custom interface on GeoNetwork OpenSource (under development)
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Making Sure The Software Making Sure The Software Works For Its UsersWorks For Its Users
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Possible Constraints of Open Possible Constraints of Open SourceSource
Lack of technical support?Lack of technical support?º The first support comes from the communityThe first support comes from the communityº Successful projects usually have companies Successful projects usually have companies
or developers in their community offering or developers in their community offering commercial technicalcommercial technical
User Oriented DocumentationUser Oriented Documentation No Marketing BudgetNo Marketing Budget
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Benefits of Open Source Benefits of Open Source SoftwareSoftware
Free to use and distribute Free to use and distribute Free to choose (no vendor lock-in)Free to choose (no vendor lock-in)
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Benefits of Open Source Benefits of Open Source SoftwareSoftware
Software can be developed or Software can be developed or
changed by everybodychanged by everybody Software is protected by a Software is protected by a
copyright, often referred to as copyright, often referred to as
copyleft, ensuring its freedomcopyleft, ensuring its freedom
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Benefits of Open Source Benefits of Open Source SoftwareSoftware
Ever-increasing Return on InvestmentEver-increasing Return on Investmentº Most improvements come back to the Most improvements come back to the
whole communitywhole community
User feedbackUser feedbackº Features that a user may not knowFeatures that a user may not know
º Bug reportsBug reports
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
An ExampleAn Example
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Benefits of Open Source Benefits of Open Source SoftwareSoftware
Strong tendency towards Strong tendency towards compliancy to international compliancy to international standardsstandards
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Building Capacity in Building Capacity in CountriesCountries
Money otherwise spend on license Money otherwise spend on license fees can go exclusively towards fees can go exclusively towards developing skills and local capacitydeveloping skills and local capacity
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Some GeoFOSSSome GeoFOSS 235 different projects listed on freegis.net235 different projects listed on freegis.net MapServer - internet map serverMapServer - internet map server
º Standards:OGC WMS, WCS, WFSStandards:OGC WMS, WCS, WFS GeoServer - internet feature serverGeoServer - internet feature server
º Standards: OGC WFS, WFS-T, WMSStandards: OGC WFS, WFS-T, WMS GeoTools - Java toolkitGeoTools - Java toolkit
º Standards: OGC WMSStandards: OGC WMS GeoNetwork - metadata and catalog toolsGeoNetwork - metadata and catalog tools
º Standards: ISO19115, OGC CatalogStandards: ISO19115, OGC Catalog uDig - client toolkituDig - client toolkit
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Web Mapping ApplicationWeb Mapping Application
© OGC 2004
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Internet Map ApplicationInternet Map Application
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
uDig Desktop Internet GISuDig Desktop Internet GIS
© OGC 2004
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
uDig Desktop Internet GISuDig Desktop Internet GIS
Screenshot of uDig © Refractions
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Handheld Map ApplicationHandheld Map Application
© OGC 2004
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Handheld Map ApplicationHandheld Map Application
Image: GRASS on iPAQ/Linux (Photo: Jan Stankovic/MN, ITC-irst)
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Metadata Catalog & Metadata Catalog & SearchSearch
© OGC 2004
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Metadata Catalog & Metadata Catalog & SearchSearch
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Web Map ServersWeb Map Servers(the Databases)(the Databases)
© OGC 2004
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
Web Map ServersWeb Map Servers
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10 May 2005 UNSDI Workshop - FAO-HQ - Italy
ConclusionsConclusions
Enormous potential for developing Enormous potential for developing countriescountriesº No need for software piracyNo need for software piracyº Develop its own software and servicing Develop its own software and servicing
industryindustryº Currency stays in the countryCurrency stays in the countryº Freedom to chooseFreedom to chooseº Freedom to distributeFreedom to distribute