Typo in label for 084 tag.

[van-de-bugger]

avram-schemas/marc.json:

    ...
    "084": {
      "tag": "084",
      "label": "Other Classificaton Number",
      "url": "https://www.loc.gov/marc/bibliographic/bd084.html",
    ...

Note the label: "Classificaton". It is obviously a typo: "i" is missed. Proper spelling is "Classification".

The same problem is in marc-schema-with-solr.json and marc-schema-with-solr-and-extensions.json.

See also: https://www.loc.gov/marc/bibliographic/bd084.html.

Probably, the typo comes from src/main/java/de/gwdg/metadataqa/marc/definition/tags/tags01x/Tag084.java.

[pkiraly]

Dear @van-de-bugger, many thanks for the error report. Yes, the source is the Java class, and the JSON representations are generated out of it. Now it is fixed.

May I ask you how did you spot the typo? In what context do you use QA Catalogue?

[van-de-bugger]

I was trying to write a program (in Perl) to get book information (title, author, publisher, etc.) from the web. I discovered Z39.50, MARC, and related stuff. There are several modules on CPAN to parse MARC records, including several programs to dump MARC records. However, I found that the tags and subfield IDs were not human-friendly. I wanted to decode the tags and subfield IDs into human-readable labels. I started collecting the labels from https://www.loc.gov/marc/bibliographic/ to a Perl hash, but the process was quite tedious. I figured someone must have done it by now, and found your blog post at https://pkiraly.github.io/2018/01/28/marc21-in-json/. By this time I had a bunch of labels got from https://www.loc.gov/marc/bibliographic/, so I decided to compare what I had with marc.json and modified my script to print out different labels. There were a few, one of which was this typo.

Also, I noticed that marc.json does not include 8XX tags.

BTW, your blog page https://pkiraly.github.io/2018/01/28/marc21-in-json/ has a minor problem:

A raw version is avalable here.

When I click on the 'here' link, my web browser does not show the content of marc.json file, but shows just one line

../../../avram-schemas/marc.json

It looks like metadata-qa-marc/master/src/main/resources/marc-schema.json is a symlink, while web server does not follow the symlink but sends the value of the symlink.

Anyway, thanks for meta.json. With meta.json and few modules from CPAN my script is almost trivial.

[pkiraly]

Thanks a lot for the explanation! I guess you should do some data cleaning after extracting the title, author, publisher data elements, because they might use i) formatting ii) multiple information in a single unit (subfield value) such as "X.Y. translated by K.L." iii) abbreviated, historical, transliterated or conjugated values.

@jorol could tell you more abot MARC + Perl, as he is one of the maintainers of Catmandu::MARC, that also utilizes the schema file.

The blog has been written in 2018, and meanwhile the repository has been updated several times. Thanks for reporting the link issue!

[van-de-bugger]

Other differences detected by my script:

006=Fixed-Length Data Elements - Additional Material Characteristics
006=Additional Material Characteristics

007=Physical Description Fixed Field
007=Physical Description

008=Fixed-Length Data Elements
008=General Information

588=Source of Description, Etc. Note
588=Source of Description Note

59X=Local Notes
59X=

69X=Local Subject Access Fields
69X=

842=Textual Physical Form Designator
842=

843=Reproduction Note
843=

844=Name of Unit
844=

845=Terms Governing Use and Reproduction
845=

853=Captions and Pattern - Basic Bibliographic Unit
853=

854=Captions and Pattern - Supplementary Material
854=

855=Captions and Pattern - Indexes
855=

863=Enumeration and Chronology - Basic Bibliographic Unit
863=

864=Enumeration and Chronology - Supplementary Material
864=

865=Enumeration and Chronology - Indexes
865=

866=Textual Holdings - Basic Bibliographic Unit
866=Textual Holdings-Basic Bibliographic Unit

867=Textual Holdings - Supplementary Material
867=

868=Textual Holdings - Indexes
868=

876=Item Information - Basic Bibliographic Unit
876=

877=Item Information - Supplementary Material
877=

878=Item Information - Indexes
878=

The first line in each pair is the label as spelled at https://www.loc.gov/marc/bibliographic/, the second line — label from marc.json.

[van-de-bugger]

I guess you should do some data cleaning after extracting the title, author, publisher data elements…

Yes, I already noted it.

@jorol could tell you more abot MARC + Perl, as he is one of the maintainers of Catmandu::MARC, that also utilizes the schema file.

Thanks, I'll see the Catmandu::MARC docs. Do not bother to give me help in advance.