GeoFrame-T: a temporal conceptual framework for data modeling
Proceedings of the 9th ACM international symposium on Advances in geographic information systems
Metamodelig architectures and interoperability of web-enabled information systems
Web-enabled systems integration
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Recent interest in spatiotemporal data modeling has been motivated by Geographic Information Systems (GIS) and other multimedia applications such as video databases. Most research in this area has focused on data representation, access methods, or data organization based on existing data models; however, such work does not specifically address the need for a conceptual modeling language suitable for analysis and specification of spatiotemporal applications. This paper proposes a graphical extension to the Unified Modeling Language (UML) and illustrates the use of this extension using a GIS example. The new notation, Spatiotemporal UML or STUML, allows clear and natural definition of spatiotemporal constructs and properties required to support applications based on different spatiotemporal models and using different interpolation semantics. The concept of attribute groups is introduced to encourage a clear and concise specification based on a single description of common spatiotemporal properties for the group.