Transcript NTG Spatially Online - Northern Territory Land Information Systems

NTG Spatially Online:
Accessing spatial data on the net
SSI Seminar Series
September 2007
Welcome
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Role of NTLIS
NTLIS Collaboration Forum
Dissemination database architecture
Free live information:
– NT Atlas
– NRETA Maps
– Place Names
– WMS
– Air Photo Index
NTLIS Metadata Tool
– Data Dictionary
Private subscriber vector downloads
– NTLIS Spatial Data Broker
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Questions & drinks :)
What is NTLIS ?
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Northern Territory Land Information System
A cooperative arrangement between NT Government agencies, other
governments and the private sector, designed to deliver better outcomes for
government, the community and industry from the use of spatial data
resources
Focused on sustainable spatial information management
Build and maintain spatial infrastructure
Consult to government agencies
– application design
– data storage methods
Coordinate training, licensing and support
– [email protected]
NTLIS Collaboration Forum
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www.ntlis.nt.gov.au/forum/
Available on the public internet
Find information, news and events
relating to spatial data and services in
the Northern Territory
NTLIS initiatives
News & events
Any user can create an account and
add their own content
Dissemination Databases and the SDI
Dissemination database access to spatial data
Client Applications
NT Visualiser
Oracle Clients
(Google Earth Enterprise)
- MapInfo, FME, SQL / JSP
Spatial Data Download
WMS Clients
(ILISMaps or scheduled download)
- ArcGIS, MapInfo, Web Apps
Web Services
ILISMaps/NT Atlas
Automated Mapping
RenderX (XEP)
- generates PDF from SVG
Users
FME
- generates SVG from spatial data
- for customosed inquiry services
Metadata (NTSDD)
Authentication
NRETA DB
(Dissemination Oracle)
(Dissemination Oracle)
- cadastre
- roads
- regions
Custodian Group
(e.g. Planning)
(Dissemination)
Other DB
- bores
- land unit surveys
- land use info
Custodian Group
(e.g. Roads)
Data
Other DB
DPI DB1
(Dissemination)
Custodian Group
(e.g. Parks)
Custodians
NT Atlas and NTSDD
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NT Atlas (external)
www.ntlis.nt.gov.au/atlas/
Layers:
– Land administration
– Land use
– Natural resources
– Topography
Searches / reports
Metadata / NTSDD
Portal to spatial information
Metadata tool
Feedback form….
ILISMaps (internal)
– Internal NTG and registered users
– Aerial photography
– Data download
NTG Data Services: WMS
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WMS: Web Mapping Service
No specific user interface
Free to the public
Wide range of clients
– ArcGIS
– MapInfo
– Web browser
– Google Earth
http://www.ntlis.nt.gov.au/forum/ntlis_documents/web-mapping-servers-wms-available-from-the-nt-government/
NTG Data Services: WMS
NTLIS Metadata Tool
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ANZLIC profile of the ISO standard
– (Hopefully) compatible with GIS software of the future
Web based, free to use by government and non government custodians
Data dictionary
Metadata forms a spatial dataset itself !
User feedback..
http://www.ntlis.nt.gov.au/forum/ntlis_documents/ntlis-metadata-tool/
NTLIS Spatial Data Broker: Development
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Currently in development
– aiming for 4th quarter 2007 release
Allows non-government users access to
the existing ILIS Maps Spatial Data
Download
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vector data only
Users must have pre-arranged data
license agreement (and payment) for
restricted datasets
Custodians must have satisfied the Spatial
Data Accessibility checklist for datasets
(see Forum)
NTLIS Spatial Data Broker: Development
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Data must be in a dissemination database
Custodians control access
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End users control output:
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format, projection, extent
ANZLIC / ISO 19139 metadata inclusion
Logging of who downloads what
Data license awareness
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role based authentication: ILIS
layers, attributes, polygon extent
renewal reminders
Auto downloader
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allows users to schedule downloads
used by NTLIS web applications
NTLIS Spatial Data Broker: Architecture
End users
Spatial Data Broker
Administer
Custodian 2
(Oracle Application Express)
Layers Permission Administrator
- custodian defines:
- permissions for each of their own layers
- Metadata URL
- Shapefile (short) attribute substitutions
- Extent polygon
Download Form
- detects user role and current license
agreement and presents list of
available layers
Data License Administrator
- custodian manages existing data licenses
- schedule renewal reminders
- view existing license
Spatial Direct
- choices for format & projection
- only accepts connections from Spatial Data Broker
Custodian 1
Administer
#1
Dissemination
Database
#2
Dissemination
Database
On the Horizon..
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Better documentation of data: data dictionaries
More data in the dissemination databases
Production deployment of Spatial Data Broker
– register your interest !
Questions ?
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Ivan Price
– [email protected]
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GIS Support
– [email protected]
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www.ntlis.nt.gov.au/forum/