Tag: address

Beverly Hills 90210 and ZIP+4: Handling Addresses in Data Models

In my last post, I wrote about ensuring that your data model properly handles global information : numbers, currencies, phone numbers, addresses, dates, and time zones, among other things. However, I’ve realized that many example data models have exactly the “self-centric” or “Amero-centric” approach that I cautioned against.As an American living abroad (for almost 30 years now), I often find that people make too many assumptions about the universality of what they know. For example, some Americans assume that others automatically understand their country’s ZIP code system, and its supplementary ZIP+4 version. In my experience, most of the world has no idea what a ZIP+4 is.