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Web Portal Presentation
Some pics to be added....
Web Portal Presentation
Content: Objective
Architecture
Software
Metadata/data catalogue
Portal
Photographs
Demonstration
Web Portal Presentation
Contracted objective:
“To make data available to the public”
Web Portal Presentation
Contracted objective:
“To make data available to the public”
Open to interpretation:
What is “data”?
Who is the “public”?
How should it be made available?
National & global trends in data provision
Web Portal Presentation
Open to interpretation:
What is “data”?
Maps spreadsheets reports
raw binary files samples photographs
GIS layers videos
etc...
Web Portal Presentation
Open to interpretation:
Who is the “public”?
Interested & expert parties - local/national govt, NGO, iwi, ...
general public- tourists, recreational users, anyone, ...
Web Portal Presentation
How should it be made available?
Internet & direct contact(volume/complexity/format)
Online catalogue(metadata system describing content)
Web site(web mapping)
Simple web services(OGC WMS/WFS)
Web Portal Presentation
Trends:
USA: www.data.gov
EU: INSPIRE
NZ: data.govt.nzeGIF
public access to government data increasingly available via common standards & protocols
Web Portal Presentation
Web site architectural goals:
Reuseable (components & tools built for thisapplication can be used elsewhere)
Interoperable (use common standards/protocols)
Expandable (new surveys can be added & new datasets & map layers for a survey)
Redeployable (portal can be moved & runas an appliance)
Web Portal Presentation
Fundamental approach:
ABSTRACTION
data managed in scattered/remote databases(by appropriate experts)
data accessed & supplied centrally (few points of access)
simple web portal kept separate from data sources
data sources reuseable
Web Portal Presentation
Fundamental approach:
ABSTRACTION
Portal Data server
DB
INTERNET
Web Portal Presentation
Fundamental approach:
ABSTRACTION
Portal Data server
DB
INTERNET
Otherwebsites
Web Portal Presentation
Fundamental approach:
IMPLEMENTATION
Portal Data server
DB
Atlasphoto
db
Metadatacatalogue
OGC
Web Portal Presentation
Software:
Core portal: Silverstripe CMSWeb maps: UMN mapserver (server)
OpenLayers (embedded client)Spatial DBMS:Postgis/ArcServerPhoto DB: AtlasMetadata: Bluenet MEST (Geonetwork)
Web Portal Presentation
Software:
Core portal: Silverstripe CMSWeb maps: UMN mapserver (server)
OpenLayers (embedded client)Spatial DBMS:Postgis/ArcServerPhoto DB: AtlasMetadata: Bluenet MEST (Geonetwork)
These are mostly free & Open Source applications(Note: Atlas & ArcServer are proprietary)
All software developed to integrate these in the portalare also free & Open Source
Web Portal Presentation
Metadata:
“data about data”
provides a searchable list of records describing datasets
provides information on fitness for use, contacts,descriptions, etc
provides access to actual data (eg: URL)
Web Portal Presentation
Metadata:
Geonetwork-
Open Source metadata catalogue from FAOGlobal & growing useStandards based
(ISO profiles/OGC protocols)
Bluenet MEST
ANZLIC fork of Geonetwork from AustraliaANZLIC & MCP profile support
Web Portal Presentation
Metadata:
Bluenet MEST
Customised by NIWA to meet OS20/20 BoI needs
Searchable access to datasets (maps/reports/etc)(contact details for off line datasets)
Access directly:
http://www.
Web Portal Presentation
Portal:
Standalone gateway to all content
Silverstripe CMS with custom web mapping module
Information on the survey & methods
Web mapping engine by survey method
OGC based data delivery - reuseable
Web Portal Presentation
Photos:
Public access via Atlas (digital asset management, used by NIWA)
11,000+ high resolution seabed and specimen photographs
Videos:
From fixed and towed cameras
Volume issue – available but offline
Web Portal Presentation
Quick demonstrations:
Main portal:General information & web mapping
Metadata portal:Search/find/download datasets
Photo database:Search/find/download photographs