Add option to de-dupe on EAN, in addition to ISBN/UPC
We'd like a bibliographic duplicate detection rule using 024$a with first indicator 3, either a new rule or modifying the existing 024$a rule. Currently there is a UPC rule that uses 024 1; there is also a 024$a rule but it specifically excludes fields with indicator 1 or 3. Why no option for 024 3? The 024$a rule says it "exclud[es] ISBN and UPC" but ISBNs aren't in 024. It does exclude EANs though, which means a lot of bibs, especially CDs, aren't detected as duplicates and one must manually find and merge them. That is, if they know to look.
Idea Value
Having the ability to detect a duplicate based on EAN would mean less manual work for catalogers, and decrease the likelihood a duplicate would be saved in error.
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AdminWes Osborn (Admin, Innovative) commented
This is something our technical services department reports to us regularly. Bibs don't merge because 024 1 & 024 3 technically represent different things (UPC vs EAN) even though they are the same number.