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- It appears that ActiveFedora v8 (Fedora 4) uses ActiveTriples for handling of RDF. Need to look at ActiveFedora code to confirm.
- SOLR integration appears to be done in ActiveFedora, not ActiveTriples. It will likely take a significant effort to move the SOLR integration out of ActiveFedora and into ActiveTriples. Need to look at ActiveFedora code to make an estimate.
- Hydra community is looking at putting RDF Access Control into ActiveFedora and thus Fedora, which complicates (to say the least) the removal of Fedora from the Hydra stack.
- See also Linked Vocabs - Linked Data Controlled Vocabularies for ActiveFedora::RDF
- See also DPLA Map - DPLA's Metadata Application Profile modeled in Active Triples which includes property validation similar to that used in ActiveModel.
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For a beginning analysis of ActiveFedora SOLR code: __Documents__/Mann/Projects/LD4L/Travel/2014-09 Hydra Connect/sessions/2014_09_30 RDF - State of RDF |
TODO: Add information about Tom's other projects for property value validation and controlled vocabularies.
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Fedora 4
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Popular Solutions Extensions to Hydra
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| Area | Contact | Project | Notes |
|---|---|---|---|
| Sufia | Mike Giarlo, Carolynn ?, Adam Wead | Sufia development team | |
| Sufia | Jim Halliday | Indiana | Ask questions about how he installed. |
| ActiveTriples | Tom Johnson | https://github.com/no-reply/ActiveTriples | |
| Linked Vocabs | Tom Johnson | https://github.com/no-reply/linked_vocabs | RDF and Controlled Vocabularies |
| DPLA Metadata | Tom Johnson | DPLA Metadata Application Path | |
| Tom Johnson, Mark Matienzo | DPLA | Using LDP, LDPath, Apache Marmotta. Developing ActiveTriples. | |
| Fedora 4 | Chris Beer | ||
| Regflow | Michael Klein | Simple, self-aware workflows for Ruby and REDIS | |
| Paul Clough | https://cecil.ibrary.northwestern.edu/ | Metadata cataloging tools from North Western | |
| Hydra w/o Fedora | Declan Fleming | USCD | Did an implementation of Hydra w/o Fedora. |
| ActiveFedora | Justin Coyne | ActiveFedora development team | Can also talk about the difference between Worthwhile and Sufia. |
| Mahmoud Audu, Patrick Feeley | Digital Case 2.0 at Case Western | Self deposit IR. | |
| DLSX to Hydra | Jeremy Morse | University of Michegan | Requested a contact at Cornell to discuss issues related to DLSX to Hydra conversion. I said I would pass it on. |
| Michael Bond | West Virginia | Not sure why this was in my notes. | |
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