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FAQ: Is the 'International' population a superset of the local populations in IIR/SSSA-NAME3?

In essence, it is true that the 'International' population is a superset of local populations, in particular, the Western European rule sets. However, there are some caveats that should be observed when using International populations.

  1. The first thing to be aware of is that there may be rule conflicts between the various local populations that comprise the International population. 


    In a UK population, the two-letter string 'st',  would be considered an abbreviation for 'street' and would match as such but in case of a French population the same string is considered an abbreviation for 'saint'.

    In a case such as this, only one rule will be used and Informatica does not disclose which rules are used in the International population.

  2. The second thing to be aware of is that the International population does not go into the same level of depth as a local population. So, what might get a match score of 90 in a local population may only score 70, for example, when used with the International population.
Where should the International population be used? 

To answer that we need to look at the data itself.  If the data has come from several countries, but majority of it it is from just three countries then the data should be treated using their respective local populations and the rest using the International population.

The decision on where to use a local population first need not necessarily be based on data volume. It may be the case that several countries have specific watch lists defined. Again, these would be treated first using local populations.

The same theories apply to cross-over areas within other populations. 


The UK population has Arabic names in it but the Arabic population has more.  Therefore, if the data being analysed comprises mainly Arabic names then the Arabic population should be used first.  Similarly, the UK population would treat the string 'ben' as a match for 'Benjamin' whereas the Arabic population would treat this as a noise word.

It is possible to use the Population Override Manager to change the various rules used to treat data. However, as the initial rules themselves are not published, it is recommended that customers contact Informatica Technical Support before doing so.​

More Information

Applies To
Product: Identity Resolution
Problem Type: Product Feature
User Type: Business Analyst
Project Phase: Implement
Product Version: Identity Resolution (Identity Search Server); Identity Resolution 2.7; Identity Resolution 2.8.05
Operating System:
Other Software:



Last Modified Date:7/16/2019 3:55 AMID:103391
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