Pattern description

Like most enterprises, WWW has multiple databases each of which controls data for its specific area or business purpose, each of which is master of its own domain. Like most enterprises, WWW has no minimal tools in place to monitor and resolve differences between these data sources. For the purposes of this litigation, these differences must be identified and brought to the attention of the business so that they can be resolved or explained.

In master data management (MDM) situations such as this one, we gather the key data, often called the key nouns of an organization, identify data disparities, and reconcile those disparities. For example, a key noun for any organization would be "customers". The same customer might be identified as "Mike" in one system and "Michael" in another or may have different mailing addresses and phone numbers in those systems because of a move. One would reconcile these disparities in any MDM system using appropriate business rules so that...