The Extent Working Group was constituted from 2022-2025. It established the direction of travel for Extent for the String Encoding Scheme Working Group to implement 2026-2028.

Membership

Thomas Brenndorfer, Canada, Chair

Gordon Dunsire, UK
Keith Knop, USA
Liz O’Keefe, USA
Mark Scharff, USA
Alice Robinson, Switzerland

Chris Holden, Technical Team Liaison Officer, ex officio

Discharge

• RSC/Chair/2026/8 - Discharge of Extent Working Group 

   

Terms of Reference

Superseded:

• RSC/Chair/2025/7 - Extent Working Group, 2025 (posted 3 February 2025; superseded by RSC/Chair/2026/8)
• RSC/Chair/2024/3 - Extent Working Group, 2024 (posted 30 January 2024; superseded by RSC/Chair/2025/7)
• RSC/Chair/2023/7 - Extent Working Group, 2023 (posted 17 July 2023; superseded by RSC/Chair/2024/3)
• RSC/Chair/2022/1 - Extent Working Group, 2022-2023 (posted 24 January 2022; superseded by RSC/Chair/2023/7)

Discussion Paper and Proposals

• RSC/ExtentWG/2025/8 - Proposal for Manifestation: sequence of units of extent (published 18 November 2025 for introduction at the RSC Meeting that evening and formal discussion at the RSC Meeting in January 2026).
• RSC/ExtentWG/2025/7 - Proposal for container and storage subelements of Manifestation: extent of manifestation (published 18 November 2025 for introduction at the RSC Meeting that evening and formal discussion at the RSC Meeting in January 2026).
• RSC/ExtentWG/2025/6 - Proposal for Manifestation: duration of embodied content (published 18 November 2025 for introduction at the RSC Meeting that evening and formal discussion at the RSC Meeting in January 2026).
• RSC/ExtentWG/2025/5 - Proposal for Manifestation: extent of embodied content and its subtype elements  (published 18 November 2025 for introduction at the RSC Meeting that evening and formal discussion at the RSC Meeting in January 2026).
• RSC/ExtentWG/2025/4 - Proposal for Manifestation: extent of aggregated content (published 18 November 2025 for introduction at the RSC Meeting that evening and formal discussion at the RSC Meeting in January 2026).
• RSC/ExtentWG/2025/3 - Proposal for Manifestation: extent of unit and its subtype elements (published 18 November 2025 for introduction at the RSC Meeting that evening and formal discussion at the RSC Meeting in January 2026).
• RSC/ExtentWG/2025/2 - Proposal for Manifestation: extent of unitary structure (published 18 November 2025 for introduction at the RSC Meeting that evening and formal discussion at the RSC Meeting in January 2026).
• RSC/ExtentWG/2025/1 - Proposal for Manifestation: extent of manifestation and Manifestation: manifestation extent statement (published 18 November 2025 for introduction at the RSC Meeting that evening and formal discussion at the RSC Meeting in January 2026).
• RSC/ExtentWG/2024/1 - Discussion Paper on the Development of Extent Elements in RDA (published 25 June 2024 for introduction at the RSC Meeting in July and formal discussion at the RSC Meeting in November).

Page last updated 29 April 2026.