14  Generating cataloguing history chart

This analysis is based on Benjamin Schmidt’s blog post A brief visual history of MARC cataloging at the Library of Congress. (Tuesday, May 16, 2017).

It produces a chart where the Y-axis is based on the “date entered on file” data element that indicates the date the MARC record was created (008/00-05), the X-axis is based on “Date 1” element (008/07-10).

Usage:

catalogues/[catalogue].sh marc-history

or

./qa-catalogue --params="[options]" marc-history

options: