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A data model describes in an abstract way how real-world entities are represented in an information or database management system. A spatial data model is intended to capture the spatial properties of entities, including location, orientation, size and shape, and the spatial relationships among entities. The intent of a spatiotemporal model is to represent the dynamic behavior of phenomena. The addition of the time dimension supports representation of the evolution of an entity over time and the evolution in relationships among entities.

A spatiotemporal data model thus has the important function of capturing the evolution of spatial properties and relationships over time, as well as nonspatial properties and relationships. The important changes in spatial properties are changes in location or movement, changes in orientation or direction ...

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