Intro

Element: <subject>

Definition: A term or phrase representing the primary topic(s) on which a work is focused.

Attributes: authority authorityURI valueURI usage displayLabel altRepGroup xlink ID lang xml:lang script transliteration

Subelements: <topic> <geographic> <temporal> <titleInfo> <titleInfoname> <genre> <hierarchicalGeographic> <cartographics> <geographicCode> <occupation>

Indexing

In the following indexed fields, there is frequently the idea of a subject_label
The subject_label is constructed by looking at the attribute @displayLabel
If it ends with either :, ?, or !:
the label is used as is.
Otherwise a : is added to create the subject_label

Fields Created

• keyword - multivalued, indexed
  Same as mods_subject_ssim

• mods_subject_ssim - multivalued, indexed
  Looks at the topic and temporal subelements of the subject elements. The value is constructed as follows:
  [subject_label ]subject_value where subject_value is value of the respective topic or temporal subelement

• mods_subject_*_ssim - multivalued, indexed
  If the subject has an @authority attribute then the * above is replaced with the @authority
  The value is constructed just as in mods_subject_ssim

• mods_subject_*_ssim - multivalued, indexed
  If the subject has an @displayLabel attribute then the * above is replaced with a slugified version of the @displayLabel
  The value is constructed as follows:
  subject_value where subject_value is value of the respective topic or temporal subelement

Direct XPATH mappings

INDEX_FIELD	XPATH
subject	mods:subject/mods:name/mods:namePart[not(@type)]
subject	mods:subject/mods:name/mods:role/mods:roleTerm[@type="text"]
subject	mods:subject/mods:titleInfo/mods:title
subject	mods:subject/mods:cartographics
subject	mods:subject/mods:geographic
other_title	mods:subject/mods:titleInfo/mods:title
mods_subject_title_ssim	mods:subject/mods:titleInfo/mods:title
mods_cartographics_ssim	mods:subject/mods:cartographics
mods_geographic_ssim	mods:subject/mods:geographic
mods_hierarchical_geographic_continent_ssim	mods:subject/mods:hierarchicalGeographic/mods:continent
mods_hierarchical_geographic_country_ssim	mods:subject/mods:hierarchicalGeographic/mods:country
mods_hierarchical_geographic_region_ssim	mods:subject/mods:hierarchicalGeographic/mods:region
mods_hierarchical_geographic_province_ssim	mods:subject/mods:hierarchicalGeographic/mods:province
mods_hierarchical_geographic_state_ssim	mods:subject/mods:hierarchicalGeographic/mods:state
mods_hierarchical_geographic_territory_ssim	mods:subject/mods:hierarchicalGeographic/mods:territory
mods_hierarchical_geographic_county_ssim	mods:subject/mods:hierarchicalGeographic/mods:county
mods_hierarchical_geographic_city_ssim	mods:subject/mods:hierarchicalGeographic/mods:city
mods_hierarchical_geographic_city_section_ssim	mods:subject/mods:hierarchicalGeographic/mods:citySection
mods_hierarchical_geographic_island_ssim	mods:subject/mods:hierarchicalGeographic/mods:island
mods_hierarchical_geographic_area_ssim	mods:subject/mods:hierarchicalGeographic/mods:area

Notes for future

• Could retire keyword in the indexer.
• other_title and mods_subject_title_ssim index the same thing

Display