The last record count consideration is list maintenance. When you no longer believe in Santa Claus and can no longer hear the sleigh bell, your information is no longer needed in the active database. Of course, one might believe again and be “reinstated.” It’s rare, but it happens. The analysts, of course, would prefer that data be kept indefinitely. A compromise was reached where the active list contains only those that still believed at the beginning of the year. All others are archived for 125 years. That should catch everybody.
Each individual is assigned a 16-byte GUID (Globally Unique vietnam rcs data Identifier). With over 2^128 different identifiers, collisions shouldn’t be an issue. Let’s say that with the name and other demographic information, a total of 300 bytes are required. Storing Individuals’ information will therefore consume about 310 GB. an initial seed copy can be pushed out to the Regional Repositories, with a master data management system coordinating the distribution of changes.
Assuming that 7% of the individuals roll off each year, the 125-year archive would be expected to be about nine times the size of the active list or 2.8 TB. Even doubling that twice to accommodate population growth is still an entirely manageable number.