Below is the abstract for this proposal. Please see the attached for the full proposal and comment no later than Monday, December, 22, 2025.
Abstract
As a subelement of Manifestation: extent of manifestation, the proposed element Manifestation: extent of aggregated content is used to record a number of the same category of expression embodied in a manifestation. The unit terms may come from a new vocabulary encoding scheme RDA Aggregated Content (with many terms derived from the current RDA Carrier Extent Unit).
Refer the issue of using terms from the vocabulary encoding scheme RDA Format of Notated Music for a possible source of values for Manifestation: extent of unitary structure to the RSC Music Working Group.
The recommendation is to move all the vocabulary from RDA Illustrative Content, except illustration to RDA Aggregated Content and modify the element Manifestation: illustrative content to be able to use applicable illustrative terms from RDA Aggregated Content.
------------------------------
Karl Pettitt
Coordinator of Cataloging and Metadata Services
University of Denver Libraries
------------------------------