Abstract
The storage and analysis of large amounts of time varying spatial and aspatial data is becoming an important feature of many application domains. This requirement has fueled the need for spatio-temporal extensions to data models and their associated querying facilities. To date, much of this work has focused on the relational data model, with object data models receiving far less consideration. Where descriptions of such object models do exist, there is currently a lack of systems which build upon these models to produce database architectures that address the broad spectrum of issues related to the delivery of a fully functional spatio-temporal DBMS. This chapter presents an overview of such a system by describing a spatio-historical object model that utilizes a specialized mechanism, called a history, for maintaining knowledge about entities that change over time, and a tour through the query processing architecture of the system. Key features of the resulting proposal include: (i) consistent representations of primitive spatial and timestamp types; (ii) a component-based design in which spatial, timestamp and historical extensions are formalized incrementally, for subsequent use together or separately; (iii) compatibility with mainstream query processing frameworks for object databases; and (iv) the integration of the spatio-temporal proposal with the ODMG standard.
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Griffiths, T. et al. (2002). Tripod: A Spatio-Historical Object Database System. In: Ladner, R., Shaw, K., Abdelguerfi, M. (eds) Mining Spatio-Temporal Information Systems. The Springer International Series in Engineering and Computer Science, vol 699. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-1149-6_7
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DOI: https://doi.org/10.1007/978-1-4615-1149-6_7
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