ADDSIA is a multi national reseach project funded by the European Union. It aims to use distributed database techniques and World Wide Web (WWW) technology in order to facilitate more effective access to statistical data by Europe's research and policy community.
We will provide a facility that allows a NSI to make available whatever data and metadata it currently has, under its own control and with minimum effort. The central model exploits developments in statistical theory to construct a client/server architecture in which computation is carried out at a local level, and partially processed statistical queries are passed to a global module which combines them. Transmitting these queries instead of micro data is an efficient way of handling queries on large datasets. It is also more secure. The project also exploits Web technology, particularly the indexing of free text metadata, and the use of active agents to interface with users.
Three application areas examine and implement different aspects of the model: access, dealing with security and efficiency; information, examining the difference between a model for constructing and storing statistical data and a model for output tables; and analysis, concentrating on developing tools for comparative analysis in a specific domain.
Published by CES
At the University of Edinburgh
Last updated 4th Septermber 2000
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