An IT Research View on SDI futures

Dave Abel

CSIRO

Enterprise Distributed Systems Technology CRC

Roadmap

• SDIs and purposes;

• Research agendas;

• Interoperability goals;

• The IMP architecture;

• The IAW project.

SDIs

Many interpretations, goals differ significantly.

An SDI is a collection of data sources and geoprocessing facilities, contributed by many autonomous units, with infrastructural support and standards.

Layered Objectives

An SDI should enable:

• advising availability of data sets;

• on-line access to data sets;

• applications integrating data from several sources;

• applications integrating data with use of geoprocessing services.

Research Agendas

A rich, interwoven mix of issues:

• organisational;

• informational;

• technical;

• exploitation.

Distinctive Aspects

• Immense collections of resources;

• High rate of technical change;

• Forms of exploitation that are still largely “to be determined”;

• High (and continuing?) heterogeneity;

• Federated model.

Tests of Interoperability

a low cost of infrastructure to enable interoperability; a high degree of provider autonomy; the ease for a provider of participation; the ease of accessing services and deriving data products; the breadth of tasks supported; scaleability in the number of data services present.

The Internet Marketplace Model

APPLICATIONS (customers)

The Internet

SERVICES (providers)

The Glue

• Two types of services: data supply and geoprocessing;

• a common language (the RSL) to request supply of data or processing;

• XML for delivery of data (but …);

• Internet protocols for connection and interaction.

Sydney’s Information Highway

EO Image Analyst’s Workbench

IAWImage Store

ER Mapper

CSIRO Software

ENVI

More Detail ...

• See www.cmis.csiro.au/imp

• email mike.clarke@cmis.csiro.au or

dave.abel@cmis.csiro.au

• catch Mike Clarke