1. The Road to Opening Up
Governmental Geospatial
Data in Taiwan
Dongpo Deng
Faculty of Geo-Information Science and Earth Observation (ITC),
University of Twente, the Netherlands
&
Institute of Information Science
Academia Sinica, Taiwan
23rd International CODATA Conference, 28-31 Oct. 2012
Tuesday, October 30, 2012
2. The development of Open Data
in Taiwan
?
• Grassroots communities pay more
attentions than governmental agencies
• Lack of high-level policy for Open Data
development
• Wrong concepts: Publishing Data is Open
Data
Tuesday, October 30, 2012
3. Gov. owns the most geo-data
Tuesday, October 30, 2012
4. Laws for Charging for Geo-
Data in Taiwan
Land Use Maps and Data
Base Maps and
Charges and Fees Topographic Maps
Act
Aerial Photo and Remote
Article 10
Sensing Images
Standard Fee for
Cadastre Maps
Data of Land
Survey and Mapping Common Version
Electronic Maps
Land Surveying and
Mapping Act Land Surveying and
Article 54 Mapping Integrated Data
e-GPS Service
Tuesday, October 30, 2012
5. Different funding models for PSI
US Internal EU treasury and
Revenue Service, legislation
IRS
Congress Wealth/jobs
=taxes
Data Users and Data Other
producing other producing agencies
agency Open data agencies agency
Users
Europe: data users pay for data
Peter Weiss, 2004. Borders in Cyberspace: Conflicting Public Sector
Information Policies and their Economic Impacts, Open Access and
the Public Domain in Digital Data and Information for Science, pp.
69-73
Tuesday, October 30, 2012
6. Open Geo-Data
• By definition of Public Common of Geographic Data
(Onsrud, 2004)
• Open domain
• cannot hold copyright by law, e.g. geo data of US
Federal
• copyright has expired, e.g. Taiwan Bao Maps (over
100 years ago)
• is not subject to copyright, e.g. facts
• Open Access
• copyrighted, but use open licenses
• GPL, CC, ODbL
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7. 4Ps to open geo data
Price Policy
Policy Principle
Principle Process
Process Price
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8. Policies for open geo-data
• remove restrictions for accessing
governmental geo-data
• remove restrictions on reuse of
governmental geo-data
• use standard formats to release geo-data
• Are current laws enough? or create new
legal rights to empower the public
Tuesday, October 30, 2012
10. The procedure of Open
Governmental GeoData
1.Discover 3.License
2.Process 4.Publish
http://agimo.govspace.gov.au/page/primer-v1/scenarios/
Tuesday, October 30, 2012
11. The procedure of Open
Governmental GeoData
Discovery
•What data do we already have?
Ask
•What data have we been asked for?
•Is this data already public?
Find the data
Then Consider Freedom of Information requests
Examine existing publications
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12. The procedure of Open
Governmental GeoData
Process
•Are there security concerns?
Ask •Will this data impact on privacy?
•Is this data at an appropriate level of
aggregation?
Sanitize
Then
Anonymize
Aggregate
Tuesday, October 30, 2012
13. The procedure of Open
Governmental GeoData
License
•Do we own this data?
•Do we have users’ permission to
publish this data?
•How should this data be able to be
reused?
Choose a license
Negotiate with owners
Remove 3rd-party data
Tuesday, October 30, 2012
14. The procedure of Open
Governmental GeoData
•Should it be a dump, feed or API?
•Is documentation and metadata
required?
•Is it published in an appropriate format?
Convert data format
Describe and document
Publish to agency site, existing repository
Tuesday, October 30, 2012
15. 5 star (geo) open data
on the web, under open license scanned maps
machine-readable data online mapping
non-proprietary format GML, KML
identifier URI Rdf4Map
Linked Data LinkedGeoData
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16. Taiwan Gazetteer
http://placesearch.moi.gov.tw
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21. Conclusion
• Governmental geo-data is infrastructure.
Pay for using data?
• Need a Open Data Policy for opening geo-
data
• Still a long way to go
Tuesday, October 30, 2012
22. Thank you for your
attention!
Question?
deng@itc.nl
Tuesday, October 30, 2012
