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    "One or more locations in which the definitive and approved versions of all software Configuration Items are securely
    stored. The DML may also contain associated CIs such as licenses and documentation. The DML is a single logical storage
    area even if there are multiple locations. All software in the DML is under the control of Change and Release
    Management and is recorded in the Configuration Management System. Only software from the DML is acceptable for use in
    a Release."1
 
    1 - ITIL® V3 Glossary
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