A Spatio-Temporal Data Model Based on Attribute-Level Versioning
Jin Shi-hua · Geomatics & Spatial Information Technology · 2006
Based on attribute-level versioning,the polygon feature table and linear feature table is the carrier of valid time(Tv) and database time(Td) in spatial data table.Transaction time reflects the creation time(Tc) of version.The change of nodes' versions and arcs' versions are recorded on the polygon feature table that includes them.According to the continuous and discontinuous change,attributes are noted separately in attribute table.This model not only expresses the version and time but also reduces the data redundancy.