Purpose
Documentation of a plan to take an agency into using a cloud-based infrastructure.
Overall Approach
The cloud migration is broken down into four major phases:
-
Discovery: The goal is to inventory the applications and services the agency wants to migrate.
-
Alpha: This phase focuses on easy, demonstrable migrations. The goal is to choose applications and services that are easy to migrate.
- Beta: This phase focuses on the cost to footprint ratio. The goal is to migrate (in order) simple applications with significant running costs.
- Post-Beta metrics baseline
- Live: The system graduates to production status, and the focus shifts to improving key performance metrics. Deploying applications into the cloud is now normal operating procedure.
Three Key Stages
Each of the active migration phases alpha
, beta
, and Live
requires execution of three key activities: