Term Kind Topic What it is
Data Migration Strategies practice Data Migration Strategies Moving data between systems with different models — where the difficulty is meaning and quality rather than transfer.
Dual Write pattern Data Migration Strategies Writing the same change to both the old and new stores during a migration, and the reconciliation that makes it trustworthy.
Reference Data Drift Code List Divergence, Static Data Staleness concept Data Migration Strategies The divergence between a source system's lookup tables and the copy taken at the start of a long migration, which turns into silent transaction rejections in the new system months later.