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This bit from one of the latest Joint Steering Committee for Development of RDA papers reads like whatever that Twitter of weird patch notes is:
4.4 Core designation of PPDM elements
The approval of 6JSC/ALA/29 effectively plugged the "cascading vortex of horror".
(PPDM = Production, Publication, Distribution, and Manufacture)
I think they are referring to a place in the RDA instructions where there existed a complicated decision tree for deciding what of these elements were core (i.e. must be included in the bibliographic record), lots of "core if:" kinds of statements, that has since been simplified; but I love that someone out there apparently characterized it as a "cascading vortex of horror". LOL.
4.4 Core designation of PPDM elements
The approval of 6JSC/ALA/29 effectively plugged the "cascading vortex of horror".
(PPDM = Production, Publication, Distribution, and Manufacture)
I think they are referring to a place in the RDA instructions where there existed a complicated decision tree for deciding what of these elements were core (i.e. must be included in the bibliographic record), lots of "core if:" kinds of statements, that has since been simplified; but I love that someone out there apparently characterized it as a "cascading vortex of horror". LOL.