A phased rollout deploys new workplace software gradually: one site, region or function at a time, with lessons from each phase applied to the next. It is the standard enterprise pattern for anything employees touch daily.
Phasing works when each wave has clear entry criteria: SSO and provisioning live, floor plans loaded, local admins trained, and a pilot already proving the configuration. The alternative, big-bang deployment, stakes the whole programme on day one going perfectly.