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Proceedings Paper

Conceptual data modeling on the evolution of the spatiotemporal object
Author(s): Jiangfeng She; Xuezhi Feng; Bo Liu; Pengfeng Xiao; Peifa Wang
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Paper Abstract

A framework to express the changes and the causalities within the object's evolution is proposed based on a general inspection of the interactions among the Spatiotemporal Objects (STOs). Why the STOs can evolve is that they can exchange the material, the energy and the information mutually. The result of their evolution is the changes of their features and mechanism. Feature changes can be categorized into 2 levels: the changes of the feature statuses and the changes of the feature structures. The former result in just the increment of the data quantity of the database, the later can furthermore result in the increment of data structures defined in the database. Any a change of a STO is caused directly by a behavior of either itself or another STO. Feature changes can be directly expressed by spatiotemporal data or data structure, but the mechanism changes of a STO can only be indirectly reflected by its feature and behavior description. The proposed framework consists of five key elements: the essence, the features, and the behaviors of the STO, the information flow and the material flow within the spatiotemporal interactive process.

Paper Details

Date Published: 25 July 2007
PDF: 10 pages
Proc. SPIE 6753, Geoinformatics 2007: Geospatial Information Science, 67530H (25 July 2007); doi: 10.1117/12.761371
Show Author Affiliations
Jiangfeng She, Nanjing Univ. (China)
Xuezhi Feng, Nanjing Univ. (China)
Bo Liu, Nanjing Univ. (China)
Pengfeng Xiao, Nanjing Univ. (China)
Peifa Wang, Nanjing Univ. (China)


Published in SPIE Proceedings Vol. 6753:
Geoinformatics 2007: Geospatial Information Science

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