It’s the second day of the MDM Summit Europe 2013 in London today.
The last session I attended today was an expert panel on Reference Data Management (RDM).
Even though a list of countries is fairly small and there shouldn’t be everyday changes to the list, maintaining a country list isn’t as simple as you should think.
First of all official sources for a country list aren’t in agreement. The range of countries given an ISO code isn’t the same as the range of countries where for example the Universal Postal Union (UPU) says you can make a delivery.
Another example I have had some challenges with is that for example the D&B WorldBase (a large word-wide business directory) has four country codes for what is generally regarded as the United Kingdom, as the D&B country reference data probably is defined by a soccer fan recognizing the distinct national soccer teams from England, Wales, Scotland and Northern Ireland.
The expert panel moderator, Aaron Zornes, went as far as suggesting that a graph database maybe the best technology for reflecting the complexity in reference data. Oh yes, and in master data too you should think then, though I doubt that the relational database and hierarchy management will be out of fashion for a while.