Authors / CoAuthors
Cox, S. | Woodcock, R. | Girvan, S.W. | Mackey, T. | Wyborn, L.A.I.
Abstract
Access to geoscience data via the web is made easier for clients if all servers provide a common interface. The OGC?s Web Feature Service (WFS) defines a standard http-based service description and request syntax, using GML for the data encoding. A GML application schema for the feature-types, such as XMML, completes the definition of the service interface. This service configuration was trialled in a testbed involving government geological survey organisations serving geochemistry data from three adjacent jurisdictions in Australia. The three organisations had quite different data-store software and storage schemas. The testbed focussed on 1. the design of feature-types for specimens and measurements to support a realistic mineral exploration scenario 2. the request syntax, in particular restricting the query-model to limit the load on the server while satisfying the use-case 3. configuration of the server-layer, to translate the result-set from the private model to the GML application language representation 4. deployment of multiple applications that connect to the services and provided a merged view of the results, in map, tabular and report form. Modifications to the open-source Geoserver and Geotools software (used in all three service instances) required to accomplish the testbed have been contributed to the Geoserver codebase. Several limitations in the WFS specification were identified, and are now subject of change-requests to through the OGC specification maintenance process. Significant technology skills were transferred into the participating organisations as a result of the testbed. Several additional jurisdictions have indicated an intention to join the geochemistry testbed, and a follow-on testbed involving lease-areas (i.e. complex non-point-located data) is underway. The testbed has clearly demonstrated the value of common feature types on the public interface, creating a marketplace for information sharing through commodification of the data-product.
Product Type
nonGeographicDataset
eCat Id
61758
Contact for the resource
Custodian
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
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- External PublicationAbstract
- ( Theme )
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- geoscience databases
- ( Theme )
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- data standards
- ( Theme )
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- information management
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_Internal
Publication Date
2005-01-01T00:00:00
Creation Date
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Purpose
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unknown
Topic Category
geoscientificInformation
Series Information
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Unknown
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