Dutch%20ministry%20implements%20Open(Source)%20WebGIS

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Dutch ministry implements Open(Source) WebGIS

• Wim de Haas
• Chiel Stroeven
• Michel Grothe
• Geo-Information and ICT Department

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Agenda

• Introduction
• Survey business case WebGIS
• Proof-of-concept
• Implementation GeoServices
• Experiences with Open Source Software
• Future developments
• Demo time
• QA

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Mission VW

• The core tasks of VW are
• to guarantee safe, versatile and reliable
  accessibility both over land and water, through
  the air, and for telecommunications and post
• to offer protection against floods
• to ensure clean and sufficient water
• 2003 Budget 6.4 Billion EUR
• 2003 Staff 15.000 fte

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Organization VW
policy making
execution
inspection
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Mission Geo-Information ICT Dept

• to service RWS with
• accurate geo-information

to deliver the generic ICT infrastructural needs
and systems
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Survey business case webGIS
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Survey results

• Bottleneck webGIS applications
• Diversity webGIS software ?
• no interoperability!
• Many app-hosting companies
• Maintenance lack of time and knowledge
• Strict budget cuts!
• Remarkable
• 90 of all data and 75 of all functionality is
  in common

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Business case
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Proof-of-concept Geoservices
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Agenda

• Introduction
• Survey business case WebGIS
• Proof-of-concept
• Implementation GeoServices
• Experiences with Open Source Software
• Future developments
• Demo time
• QA

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Implementation GeoServices

• Fully OGC compliant
• WMS
• WFS
• GML
• Web Map Context
• Styled Layer Descriptor
• ISO and CEN
• Use of Open Source Software as well as closed
  source software
• Geodan contractor with support from DMSolutions

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OpenGIS web services
2. Requestor localizes services
Registry
1. Provider publishes data and services at
Registry
Find
Publish
Requestor
Provider
Bind
3. Requestor starts service
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Geoservices Application Architecture
Browser
Presentation layer
ArcGIS
OSS
OSS
OSS
Service layer
Apache/ Chameleon
OSS
WMS Geodan
OSS
OSS
IIS
WMS
WFS
WFS Geodan
WFS ESRI
OSS
OSS
Deegree WCAS
MS4W
Geocoder
ArcIMS 4.0.1/ ArcMapServer
Geodan Location Database
ISO 19119
CEN metadata
Geodata
Geodata
Data layer
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Agenda

• Introduction
• Survey business case WebGIS
• Proof-of-concept
• Implementation GeoServices
• Experiences with Open Source Software
• Future developments
• Demo time
• QA

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Experiences OSS (1)

• OSS crossed our path
• Open mind
• Quality
• Required functionalities available
• Proven stability
• Security
• Price
• No license fees (saving of 50 kEUR)
• Benefit from others
• Costs of development equal to closed source
  software

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Experiences OSS (2)

• Support
• Active developers and user community with short
  response times
• Quick bug fixing by DMSolutions through
  support-contract
• Development
• Anticipating latest developments

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Experiences OSS (3)

• License
• No GPL, MIT or ASF style license model
• Limits the use in mission-critical applications
• Need CVS for provenance tracking
• MPs support for OSS and Open Standards

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Agenda

• Introduction
• Survey business case WebGIS
• Proof-of-concept
• Implementation GeoServices
• Experiences with Open Source Software
• Future developments
• Demo time
• QA

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Future developments (1)

• Spring 2005 a new network for VW
• 350 locations, 14.000 users
• Bandwidth of 2 Mbps - 1 Gbps
• Internet access max. 2 x 1 Gbps
• RWS technology standards
• LDAP, Active Directory
• J2EE
• .NET

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Future developments (2)

• Feature services WFS
• Web-editing
• Mobile clients
• Webclients
• Geometry and attributes
• Semantics
• Towards a GDI

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Demo time
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Questions?
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Thank you for your attention

• Contact
• Michel Grothe m.j.m.grothe_at_agi.rws.minvenw.nl
• Chiel Stroeven m.h.stroeven_at_agi.rws.minvenw.nl
• Wim de Haas w.c.a.dhaas_at_agi.rws.minvenw.nl

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Geoservices user experience (1)
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Geoservices user experience (2)