Spatio-Temporal GIS Goals Fields or Objects ? Who needs it ? Example Example Two major kinds of Time t-GIS system types Types of time value Relational Databases ? Snapshots Events by Snapshots Vector Snapshots Spatio-Temporal Obj Rasters and Events Change types in a t-GIS Granularity Simple Bitemporal Road planning Spatio-temporal operations Temporal Indexes Interpretations as Objects Multiple geometries Interpretations as Object Further Information Who doesn’t need t-GIS ? Commercial t-GIS ? Dynamic Schema
Email: Philip.Sargent@computer.org
Home Page: www.bigfoot.com/~Philip.Sargent/
Other information: This review was done while I was a Visiting Scientist at JRC Ispra ( www.jrc.org )
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