131 lines
5.6 KiB
Markdown
131 lines
5.6 KiB
Markdown
+++
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title = "CGSpace CG Core v2 Migration"
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date = 2021-02-21T13:27:35+02:00
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description = "Possible changes to CGSpace metadata fields to align more with DC, QDC, and DCTERMS as well as CG Core v2."
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categories = ["Notes"]
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tags = ["Migration"]
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url = "cgspace-cgcorev2-migration"
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+++
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Changes to CGSpace metadata fields to align more with DC, QDC, and DCTERMS as well as CG Core v2. Implemented on 2021-02-21.
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With reference to [CG Core v2 draft standard](https://agriculturalsemantics.github.io/cg-core/cgcore.html) by Marie-Angélique as well as [DCMI DCTERMS](http://www.dublincore.org/specifications/dublin-core/dcmi-terms/).
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<!--more-->
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- [Proposed Changes](#proposed-changes)
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- [Out of Scope](#out-of-scope)
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- [Fields to Create](#fields-to-create)
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- [Fields to Delete](#fields-to-delete)
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- [Implementation Progress](#implementation-progress)
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## Proposed Changes
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As of 2021-01-18 the scope of the changes includes the following fields:
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- cg.creator.id→cg.creator.identifier
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- ORCID identifiers
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- dc.format.extent→dcterms.extent
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- dc.date.issued→dcterms.issued
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- dc.description.abstract→dcterms.abstract
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- dc.description→dcterms.description
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- dc.description.sponsorship→cg.contributor.donor
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- values from CrossRef or Grid.ac if possible
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- dc.description.version→cg.reviewStatus
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- cg.fulltextstatus→cg.howPublished
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- CGSpace uses values like "Formally Published" or "Grey Literature"
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- dc.identifier.citation→dcterms.bibliographicCitation
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- cg.identifier.status→dcterms.accessRights
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- current values are "Open Access" and "Limited Access"
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- future values are possibly "Open" and "Restricted"?
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- dc.language.iso→dcterms.language
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- current values are ISO 639-1 (aka Alpha 2)
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- future values are possibly ISO 639-3 (aka Alpha 3)?
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- cg.link.reference→dcterms.relation
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- dc.publisher→dcterms.publisher
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- dc.relation.ispartofseries will be split into:
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- series name: dcterms.isPartOf
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- series number: cg.number
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- dc.rights→dcterms.license
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- Using [SPDX license identifiers](https://spdx.org/licenses/) if possible
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- dc.source→cg.journal
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- dc.subject→dcterms.subject
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- dc.type→dcterms.type
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- dc.identifier.isbn→cg.isbn
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- dc.identifier.issn→cg.issn
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- cg.targetaudience→dcterms.audience
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### Out of Scope
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The following fields are currently out of the scope of this migration because they are used internally by DSpace 5.x/6.x and would be difficult to change without significant modifications to the core of the code:
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- dc.title (`IncludePageMeta.java` only considers DC when building pageMeta, which we rely on in XMLUI because of XSLT from DRI)
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- dc.title.alternative
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- dc.date.available
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- dc.date.accessioned
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- dc.identifier.uri (hard coded for Handle assignment upon item submission)
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- dc.description.provenance
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- dc.contributor.author (`IncludePageMeta.java` only considers DC when building pageMeta, which we rely on in XMLUI because of XSLT from DRI)
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## Fields to Create
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Make sure the following fields exist:
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- [x] cg.creator.identifier (247)
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- [x] cg.contributor.donor (248)
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- [x] cg.reviewStatus (249)
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- [x] cg.howPublished (250)
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- [x] cg.journal (251)
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- [x] cg.isbn (252)
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- [x] cg.issn (253)
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- [x] cg.volume (254)
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- [x] cg.number (255)
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- [x] cg.issue (256)
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## Fields to delete
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Fields to delete after migration:
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- [x] cg.creator.id
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- [x] cg.fulltextstatus
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- [x] cg.identifier.status
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- [x] cg.link.reference
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- [x] cg.targetaudience
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## Implementation Progress
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Tally of the status of the implementation of the new fields in the CGSpace `6_x-cgcorev2` branch.
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| Field Name | migrate-fields.sh | Input Forms | XMLUI Themes¹ | dspace.cfg | Discovery | Atmire Modules | Crosswalks |
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| ---------- | :---------------: | :---------: | :-----------: | :--------: | :-------: | :------------: | :--------: |
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cg.creator.identifier | ✓ | ✓ | ✓ | - | ✓ | ✓ | |
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dcterms.extent | ✓ | ✓ | - | - | - | - | |
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dcterms.issued | ✓ | ✓ | ? | ✓ | ✓ | ✓ | |
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dcterms.abstract | ✓ | ✓ | ✓ | ✓ | ✓ | - | |
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dcterms.description | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |
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cg.contributor.donor | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |
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cg.reviewStatus | ✓ | ✓ | ✓ | - | ✓ | - | |
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cg.howPublished | ✓ | ✓ | - | - | - | - | |
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dcterms.bibliographicCitation | ✓ | ✓ | ✓ | - | - | ✓ | |
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dcterms.accessRights | ✓ | ✓ | ✓ | - | ✓ | ✓ | |
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dcterms.language | ✓ | ✓ | ✓ | - | ✓ | ✓ | |
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dcterms.relation | ✓ | ✓ | ✓ | - | - | - | |
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dcterms.publisher | ✓ | ✓ | - | - | ✓ | ✓ | |
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dcterms.isPartOf | ✓ | ✓ | - | ✓ | ✓ | ✓ | |
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dcterms.license | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |
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cg.journal | ✓ | ✓ | - | - | ✓ | ✓ | |
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dcterms.subject | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |
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dcterms.type | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | |
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cg.isbn | ✓ | ✓ | - | - | - | ✓ | |
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cg.issn | ✓ | ✓ | - | - | - | ✓ | |
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dcterms.audience | ✓ | ✓ | - | - | - | ✓ | |
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There are a few things that I need to check once I get a deployment of this code up and running:
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- Assess the XSL changes to see if things like `not(@qualifier)]` still make sense after we move fields from DC to DCTERMS, as some fields will no longer have qualifiers
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- Do I need to edit crosswalks that we are not using, like [MODS](https://wiki.lyrasis.org/display/DSDOC5x/DSpace+AIP+Format#DSpaceAIPFormat-MODSSchema)?
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- There is potentially a lot of work in the OAI metadata formats like DIM, METS, and QDC (see `dspace/config/crosswalks/oai/*.xsl`)
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------
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¹ Not committed yet because I don't want to have to make minor adjustments in multiple commits. Re-apply the gauntlet of fixes with the sed script:
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```
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$ find dspace/modules/xmlui-mirage2/src/main/webapp/themes -iname "*.xsl" -exec sed -i -f ./cgcore-xsl-replacements.sed {} \;
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```
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