OPEN STANDARDS, OPEN SOURCE AND OPEN DATA · UNIVERSITY OF TWENTE. Barend Köbben (GIP) 1 Sep 2015...
Transcript of OPEN STANDARDS, OPEN SOURCE AND OPEN DATA · UNIVERSITY OF TWENTE. Barend Köbben (GIP) 1 Sep 2015...
OPEN STANDARDS, OPEN SOURCEOPEN STANDARDS, OPEN SOURCEAND OPEN DATAAND OPEN DATA
BAREND KÖBBEN BAREND KÖBBEN
1 Sep 2015Barend Köbben (GIP) 2UNIVERSITY OF TWENTE.
CONTENTS
OPEN GEO-STANDARDS
Open Geospatial Consortium (OGC)
OPEN SOURCE GEO-SOFTWARE
Communities instead of Companies
The OS Geo software stack
OPEN GEO-DATA
1 Sep 2015Barend Köbben (GIP) 3UNIVERSITY OF TWENTE.
OPEN GEO STANDARDS
1 Sep 2015Barend Köbben (GIP) 4UNIVERSITY OF TWENTE.
OPEN STANDARDS
created in an open, international, participatory process
non-proprietary, that is, owned in common.
free rights of distribution (no royalty or other fee)
free, public, and open access to interface specifications
technology neutral
Open STANDARDS based software:
employs Open Standard formats & interfaces
can be proprietary, commercial or open source, free
1 Sep 2015Barend Köbben (GIP) 5UNIVERSITY OF TWENTE.
OPEN STANDARD IN GEO DOMAINGEO DOMAIN
Open Geospatial Consortium (OGC) “our core mission is to deliver interface specificationsc that are
openly available for global use”
Not-for-profit, international voluntary consensus standardsorganization
industry, government, and university members Founded in 1994
1 Sep 2015Barend Köbben (GIP) 6UNIVERSITY OF TWENTE.
Members
Integrators • Raytheon, Lockheed Martin, Mitsubishi, SAIC, MITRE, BAE, …
Major Hardware and Software Companies • Sun Microsystems, Oracle, Microsoft, Adobe, HP, …
Developers of GIS, mapping & earth imaging products• Intergraph, ESRI, SICAD, AutoDesk, LaserScan, MapInfo, PCI
Government agencies that depend on geo-processing • NIMA, NASA, USGS, USA/TEC, USDA, NOAA, FEMA, DoT, Census, NSF, FGDC,
DMSO, UK/OS, Au/SA, …
Others• Content Providers, Telecom, Universities, Startups, …
Open Geospatial Consortium
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OGC STANDARDISATION TOPICS
Topic 0 Overview Topic 1 Feature Geometry Topic 2 Spatial Reference Systems Topic 3 Locational Geometry Topic 4 Stored Functions and Interpolation Topic 5 The OpenGIS Feature type Topic 6 The Coverage Type Topic 7 Earth Imagery Topic 8 Relations Between Features Topic 9 Accuracy Topic 10 Feature collections Topic 11 Metadata Topic 12 OpenGIS Service Architecture Topic 13 Catalog services ...etcetera...
1 Sep 2015Barend Köbben (GIP) 12UNIVERSITY OF TWENTE.
OGC SIMPLE FEATURES GEOMETRY SCHEMA
UML representation of the Geometry schema
QuickTimeᆰ and a decompressor
are needed to see this picture.
© ITC - University of Twente / Barend Köbben; GIP dept. 13UNIVERSITY OF TWENTE.
A set of Implementation Specifications for
OWS: Open Web Services & related Encodings
(vector)data encoding:
Geographic Markup Language (GML)
Keyhole ML (KML)
Data Access:
Web Feature Service (WFS)
Web Coverage Service (WCS)
Portrayal:
Web Mapping Service (WMS)
Symbology Encoding & Styled LayerDescriptor for WMS (SE-SLD)
Metadata:
Catalog Service Web (CSW)
Service configurations:
OWS Context
1 Sep 2015Barend Köbben (GIP) 14UNIVERSITY OF TWENTE.
OWS Geowebservices are used in many places
Spatial Data Infrastructures (SDIs):
On the European level INSPIRE standards are directly based on them
The Dutch NGDI standards set by Geonovum are based on INSPIRE
The server-side software that implements these standards is bymajority Open Source
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OPEN SOURCE GEOSOFTWARE
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OPEN SOURCE SOFTWARE
(http://opensource.org/docs/osd)
Source code is freely accesible uses a OS license
free for all to use, change and (re)distribute (depending on actuallicense)
usually allowed to sell products that include source code
Development done in public: usually not by a company
by a community: distributed, informal team of developers
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OPEN SOURCE SOFTWARE (OSS) SOLUTIONS
Advantages Low installation and maintenance
costs Independence of software
vendors Large, open-minded and helpful
user community When documentation fails, code
is available for last resort Customisation: Can change
functionality to meet own’s needs
Disadvantages in some areas, proprietary
solutions (still) offer morefunctionality
Documentation is often sparse Cannot force support Requires build-up of computer
literacy in own organisation: haveto invest in people
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OPEN SOURCE SOFTWARE STACK
(web)map-viewers, Graphic User Interfaces,desktop GIS, etcetera
thin clients thick clients
middleware: geo-webservices
data-, map- and process services
Back-end: spatial databases
LIBRARIES:softwarecomponents for:●data access●conversion●analysis●projection●graphics●etc...
1 Sep 2015Barend Köbben (GIP) 19UNIVERSITY OF TWENTE.
OPEN SOURCE SOFTWARE STACK at ITC
PrototypeMozillaQt
GDAL/OGR
Proj4
Geotools/GEOS
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OPEN SOURCE SOFTWARE STACK at ITC – in this module
PrototypeMozillaQt
GDAL/OGR
Proj4
Geotools/GEOS
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OSGEO - Open Source Geospatial Foundation
– a not-for-profit organization
–mission to support and promote the collaborativedevelopment of open geospatial technologies and data.
– provides financial, organizational and legal support
– serves as an independent legal entity to which communitymembers can contribute code, funding and otherresources
– serves as an outreach and advocacy organization
– publishes the show-case OSGEO LiveDVD
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Insert and Reboot
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Thumb Drive & VirtualMachine
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OSGeo-Live
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Want to know more?
http://live.osgeo.org
OSGeo Foundationhttp://osgeo.org
Conferences:http://foss4g.org
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OPEN GEO DATA
1 Sep 2015Barend Köbben (GIP) 31UNIVERSITY OF TWENTE.
OPEN DATA
Open Data is maybe more important than Open Source
without data, software means nothing
most data is still proprietary
currently there is considerable movement to public access of geo-data
EU INSPIRE initiative OpenStreetMap Netherlands moves to OpenData:
data “basisregistraties” since 2012 opendataoverheid.nl PDOK demo gives an overview: http://nieuwsinkaart.nl/pdok/ Enschede “open data stad” (opendataenschede.nl)
1 Sep 2015Barend Köbben (GIP) 32UNIVERSITY OF TWENTE.
OWS Geowebservices are used in many places
Many of the SDI geowebservices deliver their data as Open Data
In the Netherlands this is arranged by law as so-called Base Registrations (Basisregistraties):
BRK/BRT - Basisregistratie Kadaster en Basisregistratie Topografie
BAG - Basisregistraties Adressen en Gebouwen
BGT - Basisregistratie Grootschalige Topografie (Voorheen:GBKNGrootschalige Basiskaart van Nederland)
BRO - Basisregistratie Ondergrond
BR WOZ (of BRWOZ) - Basisregistratie Waardering Onroerende Zaken
BLAU - Basisregistratie Lonen, Arbeidsverhoudingen en Uitkeringsverhoudingen
BRI - Basisregistratie Inkomen
BRON - Basisregistratie Onderwijs
BRV - Basisregistratie Voertuigen
BRP - Wet Basisregistratie Personen
Handelsregister (bij de Kamer van Koophandel)
RNI - Registratie Niet-Ingezetenen
1 Sep 2015Barend Köbben (GIP) 33UNIVERSITY OF TWENTE.
Result: Easy access to powerful tools & data
➔mashing up open data and animated maps
http://www.flyabb.com/livetrein/fullscreen.php
1 Sep 2015Barend Köbben (GIP) 34UNIVERSITY OF TWENTE.
Result: Easy access to powerful tools & data
➔ Spatial Data Infrastructures merge with Atlasses
http://www.nationaleatlas.nl
www.nationaleatlas.nl
1 Sep 2015Barend Köbben (GIP) 35UNIVERSITY OF TWENTE.
Architecture