RDA 3.3
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RDA 3.3: CMC Processing
Content, Media, Carrier
Specify whether to exclude 33X fields from being generated as part of the mapping between 245 $h GMD and 33X Content, Media, and Carrier types.
MARS 2.0 processing utilizes over 600 individual rules in order to properly map to the most correct set of 33X fields. For instance, there are over 100 rules dedicated solely to electronic resources.
If present, GMDs are used in the vetting process, as well as 006, 007, and 008 fixed field positions.
A $2 with the relevant CMC will also be added during the update process: $2 rdacontent, $2 rdamedia, $2 rdacarrier.
links
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