dutch ministry implements open(source) webgis
DESCRIPTION
Dutch ministry implements Open(Source) WebGIS. Wim de Haas Chiel Stroeven Michel Grothe Geo-Information and ICT Department. Agenda. Introduction Survey & business case WebGIS Proof-of-concept Implementation GeoServices Experiences with Open Source Software Future developments - PowerPoint PPT PresentationTRANSCRIPT
10JUN2004
Dutch ministry implements Open(Source) WebGIS
Wim de Haas Chiel StroevenMichel GrotheGeo-Information and ICT Department
10JUN2004
Agenda
• Introduction• Survey & business case WebGIS• Proof-of-concept• Implementation GeoServices• Experiences with Open Source Software• Future developments• Demo time• Q&A
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Mission V&W
The core tasks of V&W 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 V&W
inspection execution policy making
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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
Cumulative costs per scenario
-
5.000.000
10.000.000
15.000.000
20.000.000
25.000.000
30.000.000
1 4 7 10
Years
Co
sts
(cu
mu
lati
ve)
Decentraal
Centraal
Decentraal -Centraal
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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• Q&A
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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
Bind
Publish
Registry
Requestor Provider
Find
2. Requestor localizes services
1. Provider publishes data and services at Registry
3. Requestor starts service
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Browser
Apache/
Chameleon
Presentation layer
Deegree WCAS
Geodan
Location
Database
ISO
19119
CEN
metadata
Service layer
Data layer
MS4W
WMS WFS
Geocoder
WFS Geodan
Geodata
ArcIMS 4.0.1/
ArcMapServer
WFS ESRI
WMS Geodan
Geodata
OSS
OSSOSS
OSS
OSSOSS
OSS
OSS
ArcGIS
IIS
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Agenda
• Introduction• Survey & business case WebGIS• Proof-of-concept• Implementation GeoServices• Experiences with Open Source Software• Future developments• Demo time• Q&A
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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
• MP’s 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• Q&A
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Future developments (1)
• Spring 2005 a new network for V&W– 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:
[email protected] Stroeven:
[email protected] de Haas:
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Geoservices user experience (1)
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Geoservices user experience (2)
Adding kaartbeeld
Request meta-informatie