Characteristics and Geographic Location Types

As with identifiers and names, different Geographic Location Characteristics are only appropriate for specific Geographic Location Types. Population, for example, is typically only appropriate for the Geographic Location Type geopolitical area. Predominant species is only meaningful for a natural area, and so forth.

Figure 5-10 shows the entity class Geographic Location Characteristic Assignment that is the fact that a particular Geographic Location Characteristic is only appropriate for a particular Geographic Location Type.

Business Rule

·         A Geographic Location may only be described by a Geographic Characteristic if that Geographic Characteristic is subject to a Geographic Characteristic ...

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