Digital preservation encompasses the policies, strategies, and institutional commitment necessary to maintain and provide access to digital content over time. Policies govern the strategic development of a preservation plan and lay out the institutional commitment to ongoing preservation. Strategies and actions address all points in the lifecycle of a digital object - e.g., creation, storage transfer, and ongoing maintenance. Digital preservation activities include disaster planning, data and tool migration, preservation metadata capture, etc. Materials to be digitally preserved include those that are created through digitization projects and those created and maintained digitally ('born digital').