SSD '90 Proceedings of the first symposium on Design and implementation of large spatial databases
The TSIMMIS Approach to Mediation: Data Models and Languages
Journal of Intelligent Information Systems - Special issue: next generation information technologies and systems
Catching the boat with Strudel: experiences with a Web-site management system
SIGMOD '98 Proceedings of the 1998 ACM SIGMOD international conference on Management of data
A hierarchy-aware approach to faceted classification of objected-oriented components
ACM Transactions on Software Engineering and Methodology (TOSEM)
An introduction to spatial database systems
The VLDB Journal — The International Journal on Very Large Data Bases - Spatial Database Systems
Realm-based spatial data types: the ROSE algebra
The VLDB Journal — The International Journal on Very Large Data Bases
Guest Editor's Introduction: Cooperative Information Systems
IEEE Expert: Intelligent Systems and Their Applications
Data-Driven, One-To-One Web Site Generation for Data-Intensive Applications
VLDB '99 Proceedings of the 25th International Conference on Very Large Data Bases
XML-Based Integration of GIS and Heterogeneous Tourism Information
CAiSE '01 Proceedings of the 13th International Conference on Advanced Information Systems Engineering
A Schema Analysis and Reconciliation Tool Environment for Heterogeneous Databases
IDEAS '99 Proceedings of the 1999 International Symposium on Database Engineering & Applications
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The design of a Web-geographical information system strongly requires methodological and operational tools to deal with information distributed in multiple, autonomous and heterogeneous data sources, and a uniform data publishing methodology and policy over Internet web sites. In this chapter, we describe our experience for the activities of requirement analysis and conceptual design of the DEAFIN Web-geographical information system whose objective is to improve the quality and the comparability of information about available industrial vacant sites, coming from different regional data sources. Heterogeneity and web availability requirements have been taken into account in the system architecture design. The DEAFIN system is thus conceived as a federated web-based information system, capable of managing and providing access to all the regional relevant information in an integrated and complete fashion. Furthermore, since the data available by a given DEAFIN region partner can be both spatial data and alphanumeric data, for each regional component system in the DEAFIN system, a Web-GIS system is defined.