BM extensions to CRM. This is obsolete: see BM Mapping

BM Data

• 14Gb of XMLs exported from BM's collection system (Merlin). Took several weeks (SSL says it'd have been faster if they knew better)
• RDF takes between 12 and 24 hours to assert in the current triple store (IntelliDimension)
• Exported from Merlin, a C/C++ system with a proprietary OO database. BM's Merlin model is based on the SPECTRUM standard for Museum Documentation. The functionality of other museum collection systems is also based on SPECTRUM
• http://collection.britishmuseum.org/: live links to BM objects
  (was http://bm2.rkbexplorer.com during development)

• recommended URI allocation:
  http://collection.britishmuseum.org/object/PPA1818832 : object (non information resource)
  http://collection.britishmuseum.org/object/PPA1818832.html : html representation (information resource for humans)
  http://collection.britishmuseum.org/object/PPA1818832.rdf : rdf representation (information resource for computers)
  http://collection.britishmuseum.org/object/PPA1818832/production : info about production (who when where created it)
  http://collection.britishmuseum.org/object/PPA1818832/acquisition : info about acquisition (when the BM got it)

BMX Description

Developed by Seme4 as part of BM collection data mapping to RDF in the CRM schema.
Extended/corrected by Josh following review by Vlado.
The following documents describe the BM data

D1 Conversion

D1 - BM to ResearchSpace- Conversion Process and Schema.pdf. Ian Millard, Seme4.
"Recommended process for converting data from a Collections Management System in the Cultural Heritage domain into Open Linked Data"

• demonstrate feasibility for converting the entire Collections data from the British Museum into Linked Data
• describes the developed ETL tool "makeRDF": based on config files, uses xpath, similar to xslt but simpler
• describes the technical aspects of data conversion
• nice intro to CRM

D2 Mapping

D2 - Commentary on the mapping process- from BM to CIDOC-CRM.pdf, Hugh Glaser, SotonU

• very informative description of the mapping and the thinking behind it, shows the complexity of museum data.
• description of BMX
• instructive usage guide for the CRM

Sample object

BM-object-GAA87981.pdf: Shows all triples for a single object, and describes them

BMX ontology

• http://crm.rkbexplorer.com: live links to CRM & BMX class & property desciptions
• [^bm-extensions.ttl]: BMX definition. It's RDFS only, not OWL
• BM-extensions.pdf: BMX description