I generally support this proposal.
The proposal goes into some detail about the two existing definitions of "container" in official RDA. However, it appears that this problem was previously solved by the RSC. The RDA Terms vocabulary does not hold the second definition at this time, nor are the two definitions in the Glossary. Thus, the proposed change to "container" under Recommendation 1 is simply to add the 2nd paragraph (as described on p. 2 of this proposal). This is fine with me.
Recommendation 2: Create the element Manifestation: number of containers
The last paragraph here says: Current instructions for recording the number of containers are at https://access.rdatoolkit.org/en-US_ala-8754c7a9-c38c-3735-9cf9-865df717f81b/p_evs_3cz_xdb but it is entangled with recording the number of items and volumes in a collection. These instructions will need to move to Community Resources given the string encoding schemes needed to construct values.
That leaves unexplained what instructions will appear in this element (after the definition and Prerecording sections). To truly understand how all of these proposals interrelate, the full context would be helpful.
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Kathy Glennan
Director, Cataloging & Metadata Services
University of Maryland Libraries
she/her/hers
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Original Message:
Sent: Dec 19, 2025 09:10 AM
From: Iman Dagher
Subject: Request for Comment: Proposal for Container and Storage Subelements of Manifestation: Extent of Manifestation
I also agree with Erin.
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Iman Dagher
Arabic & Islamic Studies Metadata Librarian
UCLA Library. Resource Acquisitions & Metadata Services
She/Her/Hers
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