RDA Blog or Resource Description & Access (RDA) is a blog on Resource Description and Access (RDA), a new library cataloging standard that provides instructions and guidelines on formulating data for resource description and discovery, organized based on the Functional Requirements for Bibliographic Records (FRBR), intended for use by libraries and other cultural organizations replacing Anglo-American Cataloguing Rules (AACR2). Free for everyone Forever.
There are three new relationship designators Appendix I:
cartographer (expression) [I.3.1]
minute taker [I.3.1]
[Source : RDA Toolkit]
Comments by Aaron Kuperman, Law Librarian, Library of Congress : This list is flexible. It is expected that new terms will be constantly added. Consider it as being similar to how LCSH grows, rather than the former system under LCRI under changes were few and far between.