An extended entity-relationship model for geographic applications
ACM SIGMOD Record
Spatial data integrity constraints in object oriented geographic data modeling
Proceedings of the 7th ACM international symposium on Advances in geographic information systems
Modeling part-whole relationships for spatial data
Proceedings of the 8th ACM international symposium on Advances in geographic information systems
Proceedings of the 8th ACM international symposium on Advances in geographic information systems
Requirements and research issues in geographic data modeling
Proceedings of the 9th ACM international symposium on Advances in geographic information systems
A Small Set of Formal Topological Relationships Suitable for End-User Interaction
SSD '93 Proceedings of the Third International Symposium on Advances in Spatial Databases
Modeling Topological Constraints in Spatial Part-Whole Relationships
ER '01 Proceedings of the 20th International Conference on Conceptual Modeling: Conceptual Modeling
Data and web management research at Politecnico di Milano
ACM SIGMOD Record
From the conceptual design of spatial constraints to their implementation in real systems
Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Building a global normalized ontology for integrating geographic data sources
Computers & Geosciences
ER'11 Proceedings of the 30th international conference on Advances in conceptual modeling: recent developments and new directions
Entity-relationship and object-oriented formalisms for modeling spatial environmental data
Environmental Modelling & Software
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The ISO TC 211 standards have defined a set of formal models for the conceptual modeling of spatial data using the Unified Modeling Language (UML) and the geometry approach adopted by the ISO spatial data model and by the Geographic Mark-up Language (GML). This approach aims to define a conceptual model for the design of geographic databases and for the geospatial interoperability of heterogeneous spatial databases. The ISO standards are however complex and counterintuitive in dealing with spatial integrity constraints, which are fundamental for the expressiveness of a conceptual model in the geographic application domain. This paper improves the ISO approach by proposing a framework which allows the definition of powerful, easy to use, and ISO conformant modeling abstractions for topological spatial constraints. These modeling abstractions have been incorporated in the definition of the GeoUML conceptual model used in the Italian IntesaGIS project for the definition of the “core” database of the Italian Spatial Data Infrastructure.