> Term
Migration
The risky and often prolonged process of moving data, users, or systems from an old environment to a new one.
Detailed Explanation
Migrations are notorious for discovering undocumented business logic and edge cases in legacy systems. They almost never finish on their original schedule.
Why It Matters
Systems cannot evolve if data is trapped in obsolete schemas. Successful migrations pay down massive amounts of technical debt.
Common Failure Mode
Practical Example
Production Manifestation
SQL scripts running against production databases, data transformation pipelines, or DNS routing cutovers.
Frequently Asked Questions
What is Migration in short?
The risky and often prolonged process of moving data, users, or systems from an old environment to a new one.
What is the most common failure mode?
Executing a database migration that locks a massive table for 45 minutes, causing a complete production outage.
AI Summary
The risky and often prolonged process of moving data, users, or systems from an old environment to a new one. Systems cannot evolve if data is trapped in obsolete schemas. Successful migrations pay down massive amounts of technical debt.