The Digital Public Library of America (DPLA) is happy to announce the release of Krikri <https://github.com/dpla/KriKri> version 0.1.3, a Ruby on Rails engine for metadata aggregation, enhancement, and quality control. DPLA uses Krikri as part of Heiðrún <https://digitalpubliclibraryofamerica.atlassian.net/wiki/display/TECH/Heidrun>, its new metadata ingestion system.
Krikri 0.1.3 includes the following features: - Harvesting metadata from OAI-PMH providers, and support for building other harvesters - Creating RDF metadata models, with specific support for the DPLA Metadata Application Profile - Parsing metadata and mapping to RDF graphs using a Domain Specific Language - Persistence for graphs and objects using the Linked Data Platform specification - Enrichments for mapped metadata, including date parsing and normalization, stripping and splitting on punctuation, and more - Queuing and association of jobs to metadata using provenance information - A basic quality assurance interface, including record browse and search, a record-graph comparison view, and reports on conformance to your metadata application profile Krikri and Heiðrún are open source software, released under the MIT License <http://opensource.org/licenses/MIT>. Krikri and Heiðrún are built on top of other open source components, including Apache Marmotta <http://marmotta.apache.org/>, Apache Solr <http://lucene.apache.org/solr/>, ActiveTriples <https://github.com/ActiveTriples/ActiveTriples>, Blacklight <https://github.com/projectblacklight/blacklight>, and Resque <https://github.com/resque/resque>. More information about Krikri and Heiðrún can be found at the following links: - Krikri on Github: https://github.com/dpla/KriKri - Heiðrún overview page: https://digitalpubliclibraryofamerica.atlassian.net/wiki/display/TECH/Heidrun - Krikri API documentation: http://www.rubydoc.info/github/dpla/KriKri/master - DPLA’s Code4lib 2015 presentation on Heidrun: http://code4lib.org/conference/2015/altman Mark A. Matienzo <m...@dp.la> Director of Technology Digital Public Library of America | <http://dp.la>