The definitive media library is the responsibility of:

Facilities Management is responsible for managing the physical IT environment such as data centers and power infrastructure and does not own or manage logical software repositories.

Access Management controls user rights and permissions to use services but has no ownership or management responsibility over the Definitive Media Library.

Request Fulfillment handles standard service requests submitted by users and does not manage or maintain controlled software asset repositories.

Service Asset and Configuration Management (SACM) is responsible for the Definitive Media Library, a secure logical library holding master copies of all controlled and authorized software configuration items. SACM maintains the integrity and accuracy of the DML as part of its broader mandate to manage and protect configuration items and software assets throughout their lifecycle.