Reification

The act of making something a thing; to make an abstract concept concrete.

In terms of content management, reification happens during content modeling when the logical idea of some content is converted into the actual content types, attributes, and datatypes required to translate the logical idea of content into set of data that a CMS can manage.

More loosely, reification might refer to realization of a plan. If an organization has an idea of a content managed media center, the reification of this idea would be the finished implementation as it was planned.