Back to Glossary Divestiture The planned separation of a business unit, subsidiary, or product line from a parent organization, including the complex technology work required to untangle shared IT infrastructure, data systems, identities, and licensing agreements. IT divestitures demand precise carve-out planning to ensure the divested entity can operate independently while minimizing disruption to both organizations during and after… The planned separation of a business unit, subsidiary, or product line from a parent organization, including the complex technology work required to untangle shared IT infrastructure, data systems, identities, and licensing agreements. IT divestitures demand precise carve-out planning to ensure the divested entity can operate independently while minimizing disruption to both organizations during and after the transition.