SDI Convergence - Nederlandse Commissie voor Geodesie - KNAW

6. CONCLUSION
We presented a scenario that describes for the first time how data grids can solve the
problem of sharing address data in an SDI. Our approach is both a novel application
for data grids as well as a novel technology in SDI environments, and thus improves
the understanding of the requirements and issues related to applying grid technology in
SDIs. We presented the computational viewpoint of the Compartimos reference model
and analysed technology choices for individual Compartimos objects. From this analysis
it is evident that collaboration on standards between the grid and SDI communities
is imperative. Our analysis advances the understanding of the requirements for, and
the use of, the data grid approach in a specific application domain, namely address
data in an SDI. Thus, the article sheds light on a future technological solution that could
overcome some of the data sharing impediments that are experienced in SDIs today,
and it discusses research that will support the vision of an address data grid for in an
SDI.
ACKNOWLEDGEMENTS
The work reported in this article is partially supported by a THRIP project funded by the
South African Department of Trade and Industry (dti) and AfriGIS.
REFERENCES
Aalders H.J.G.L. (2005). An introduction to spatial metadata standards in the world, in
Moellering H., Aalders H.J.G.L. and Crane A. (eds.). World Spatial Metadata
standards, Oxford, United Kingdom: Elsevier.
Aloisio G., Cafaro M., Conte D., Tiore S., Epicoco I., Marra G.P., Quarta G. (2005a). “A
Grid-Enabled Web Map Server, International Conference on Information Technology:
Coding and Computing (ITCC'05) - Volume I, pp. 298-303.
Aloisio G., Cafaro M., Fiore S., Wuarta G. (2005b). “A grid-based architecture for earth
observation data access”, 2005 ACM Symposium on Applied Computing, March
13-17 2005, Santa Fe, New Mexico, USA.
Aydin G., Sayar A., Gadgil H., Aktas M., Fox G.C., Ko S., Bulut H. and Pierce M.E.
(2008). Building and applying geographical information system Grids, Concurrency
and Computation: Practice and Experience, 20(14): 1653-1695.
Brodeur J. (2004). “Interoperability of Geographic Information: A Communication -
Based Prototype”, Proceedings of The 8th World Multi-Conference on Systemics,
Cybernetics and Informatics (SCI 2004), Orlando, Florida, pp 327-332.
Coetzee S. and Bishop J. (2008). Address databases for national SDI: Comparing the
novel data grid approach to data harvesting and federated databases, International
Journal of Geographical Information Science, 26 September 2008, available
online ahead of print edition at http://www.tandf.co.uk/journals/tf/13658816.
html.
Coetzee S., Cooper A.K., Lind M., McCart Wells M., Yurman S.W., Wells E., Griffiths
N. and Nicholson M.J.L. (2008). “Towards an international address standard”,
GSDI-10 Conference, Trinidad and Tobago, 25 – 29 February 2008.
Craglia M., Goodchild M.F., Annoni A., Camara G., Gould M., Kuhn W., Mark D.,
Masser I., Maguire D., Liang S. and Parsons E. (2008), Next-Generation Digital
Earth, a position paper from the Vespucci Initiative for the advancement of Geographic
Information Science, International Journal of Spatial Data Infrastructures
Research, 3: 146-167.
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