Bertino, ElisaElisaBertinoCamossi, ElenaElenaCamossiBertolotto, MichelaMichelaBertolotto2009-08-062009-08-06Springer-V2009-07-03978-3-642-14680-0http://hdl.handle.net/10197/1339Paper presented at the International Conference on Object Databases, 1-3 July 2009, ZurichThe capability of representing spatio-temporal objects is fundamental when analysing and monitoring the changes in the spatial configuration of a geographical area over a period of time. An important requirement when managing spatio-temporal objects is the support for multiple granularities. In this paper we discuss how the modelling constructs of object data models can be extended for representing and querying multi-granular spatio-temporal objects. In particular, we describe object-oriented formalizations for granularities, granules, and multi-granular values, exploring the issues of value conversions. Furthermore, we formally define an object-oriented multi-granular query language, and discuss the dynamic adapting of multi-granular data. Finally, we illustrate the current open research issues of multi-granular spatio-temporal data handling.516896 bytesapplication/pdfenSpatio-temporal multi-granularityObject oriented modelsObject-oriented methods (Computer science)Granular computingConference Publication10.1007/978-3-642-14681-7_8https://creativecommons.org/licenses/by-nc-sa/1.0/