switchover

Definition

The often-terrifying moment when an organization flips from an old system, platform, or process to a shiny new one, typically scheduled for 3 AM on a weekend. It's the business equivalent of changing a tire while the car is still moving. Usually accompanied by prayers, energy drinks, and a rollback plan that everyone hopes they won't need but definitely will.

Example Usage

The switchover to the new CRM system went smoothly, if you ignore the six hours of downtime and the CEO's panicked Slack messages.

Source: Common IT and business terminology

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