In scope: Conversion from MARC to linked data

Out of scope: Conversion from linked data to MARC

Notes:

• 156,899 monographs in LC’s 1M dataset has supplementaryContent derived from 008/24-27

• Example RDFs having supplementaryContent derived from 008:

  • https://id.loc.gov/resources/works/21103281.html

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Overview:

Purpose of this story is to Update Marc2BF conversion Java library to process marc field 008, char 31 to create “supplementaryContent” edge.

This conversion is applicable only when the material type of the Work is “Book”. Determination of the material type should rely on examining characters at positions 6 and 7 of the leader (0-based indexing). If the combination of characters in positions 6 and 7 of the leader matches any of the following sequences, then it is recognized as a Book.

Each Work may contain multiple supplementaryContents, denoted by characters within the range of 24 to 27 (inclusive). A Category resource is to be created for each character.

New resources to be created

Resource 1:

For each character within the range of 24-27 (inclusive), specifically if the character is one of: b, k, q, an outgoing edge with predicate http://bibfra.me/vocab/marc/supplementaryContent should be created from the Work resource.

Type: http://bibfra.me/vocab/lite/Category

Resource 2:

 Create an outgoing edge http://bibfra.me/vocab/lite/isDefinedBy from the Category resource with the following properties
Type: 
 >> http://bibfra.me/vocab/lite/CategorySet

Properties

Example:

Consider the below given 008 value, where characters in position 24-27 is “bq“

190726t20182018quca bq 000 0 fre d

The resulting graph should resemble the following:

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