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Enterprise Model Patterns: Describing the World (UML Version) by David C. Hay

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Note that if the example were of a Canadian Facility, the address would have featured a Province Name from a Province, instead of the State Name shown. In other parts of the world, there might have been references to Village Name or Borough Name.

The problem is that different countries organize the land in different ways. Many of these organizations have evolved over centuries, often making them extremely complex. In many cases the finer points of land organization have been simplified for purposes of mailing addresses, but they are still lurking beneath the surface.

In the more abstract approach shown in Figure 12-5, the inter-geographic location lines are gone. We still have a relationship between Facility ...

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