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CHIPS Articles: Establishment of Single Service Microsoft 365 Cloud Tenancy

Establishment of Single Service Microsoft 365 Cloud Tenancy
By DON CIO Memo - July-September 2020
The DON shall establish single service Microsoft 365 cloud tenancy; one tenant for the Navy and Secretariat, and one tenant for the Marine Corps. Moving to single tenancy is the most expeditious way to ensure users are accounted for and migrated to the cloud-based office suite of services offered by Microsoft 365. Single tenancy reduces cost and complexity, enables effective command and control, and increases the efficiency of federation management with external DON tenants. Single tenancy does not preclude deployment of the collaboration and productivity services across multiple networks.

Creation of single Service tenants is a foundational step to implementing the DON identity, credentialing and access management (ICAM) strategy, and will allow the DON to pursue a common ICAM approach across the DoD. Single directory management for the Navy and Marine Corps will allow a reduction to individual aliases, and move the DON closer to one email for life. Directory management tools can also serve as a source of identity management for applications re-factoring for cloud that are interested in flexible access management and single sign-on. Starting with these capabilities will allow the DON to clean up identity, and to learn and evolve as our understanding grows.

To that end, individual testing, procurement or implementation of the Microsoft 365 tenants underway must be reviewed and aligned to the DON CIO, DON Deputy CIO (Navy) and DON Deputy CIO (Marine Corps) core service delivery and ICAM approach. These reviews must be routed to and approved by the DON CIO via the appropriate Service DON Deputy CIO.

Please download the file here.

The point of contact is Mr. Michael Galbraith, Michael.galbraith1@navy.mil, 703-692-4953.

Signed by:
Aaron D. Weis
Department of the Navy
Chief Information Officer

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