Visualizing some of the structure of new data models

>A small raft of documents have been produced lately as the library cataloging community heads toward implementation of new cataloging instructions and data models.  Here is one attempt at a visualization of the changes that are happening, although it doesn’t show everything and there are doubtless far better ways to illustrate it.  Nevertheless, here we go. 



(Brief guide for the perplexed:  Numbers in circles 1-3 refer to classes of FRBR entities; circle 4 is for Annotations.  The BIBFRAME initiative would, depending on how you look at it, either split class 1 or merge entities from within it, while classes 2 and 3 are merged and would link to authority records via, e.g., URIs.  The column running down the middle with lines out from it represents what catalogers already work with, MARC, but shows how it aligns with FRBR entities following Tom Delsey’s 2006 report for NDMSO.)

(For the still perplexed:  This is an overview of the structure of legacy library data, with a newly proposed abstraction layer that surrounds it, rather than merely replacing the data format alone.)

Update: A version that will hopefully serve as more user-friendly, albeit a bit more rough, here.

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2 thoughts on “Visualizing some of the structure of new data models

  1. How did you know which MARC field to allocate each FRBR entity to? Is there a mapping somewhere that you referenced?

    • The mappings follow a 2006 report found here, and a draft of the Provider-Neutral E-Resource MARC Record Guide issued by the PCC in early November. Within the RDA Toolkit, there is yet another draft mapping to be found, issued by CONSER. The visualization I’ve drawn up here is not meant to be normative and it’s likely to have some omissions and errors; for now it’s just a way I could think of to help keep track of the relative complexity of how MARC elements relate to FRBR entities, and where the most differences in interpretation between sources are likely to arise.

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