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ISO 21127 (CIDOC CRM) - a very concise introduction

ISO 21127 (CIDOC CRM) - a very concise introduction. What it is What it’s for How it’s being used Questions Nick Crofts – Convenor ISO TC46/SC4/WG9. A tough sell…. Too complicated Not useful Too boring Never heard of if. ISO 21127 is an “ontology”.

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ISO 21127 (CIDOC CRM) - a very concise introduction

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  1. ISO 21127 (CIDOC CRM) -a very concise introduction What it is What it’s for How it’s being used Questions Nick Crofts – Convenor ISO TC46/SC4/WG9

  2. A tough sell… • Too complicated • Not useful • Too boring • Never heard of if

  3. ISO 21127 is an “ontology” • A formal domain ontology for cultural heritage information: • precise and unambiguous • describe the things that the cultural heritage sector deals with and how these things relate to each other • expressed as an “object-oriented” schema

  4. Background to ISO 21127 • Product of the CIDOC Documentation Standards Group • Work started in 1996 Crete, hosted by ICS-Forth • First version presented at ICOM conference Melbourne 1998 • ISO 21127 published sept 2006

  5. Work process: Lentius, profondius, durabilius • More than 10 years work • Built on the collective experience of international experts from 5 continents • A “bottom-up” process: • Analysis • Mapping • Intégration and enhancement • Encapsulates practically all the existing standards we could find (CIDOC, mda Spectrum, CIMI, AMICO, FRBR, EAD, even Dublin Core…)

  6. The result • Rich, detailed, comprehensive • Compact, economical • Extensible, Robust Subjected to hard knocks, crash tested… built to last

  7. Extensibility: an object oriented schema • Basic object-oriented concepts: • Classes (object, actor, event) • Properties (current location, stolen by, took place on) • 80 classes, 131 properties • Hierarchy of general to specific concepts (animal… fish… herring… red herring) • Inheritance (what’s true of the general is true of the particular) No need to change your software

  8. Naming conventions • E number and nominal forms for entities • e.g. E39 Actor • P number and verb phrases for bi-directional link properties • e.g. P2 has type (is type of) Facilitates translation and data transfer

  9. An example class…(p49)

  10. ISO 21127 (CIDOC CRM)

  11. E52 Time Span E39 Actor E5 Event E77 Persistent Item P12 was present at P11 had participant P4 has time span E53Place P7 took place at Core concepts…

  12. Examples… • Thomas Gainsborough moved to Bath in 1759. (E39 Actor, E5 Event, E53 Place, E52 Time-Span) • The Yalta Conference took place on February 11 1945. (E5 Event , E52 Time-Span) • The Tay Bridge (E77 Persistent item) was destroyed (P13) as a result of the Tay Bridge Disaster (E5 Event) • Lineas (E39 Actor) created (E5 Event) the taxon « Serratula glauca » (E77 Persistent item) in 1753 (E52 Time-Span) based on (P12) the specimen BM000576251 (E77 Persistent Item)

  13. So what’s it for?.. • Establish a conceptual basis for integration and access to cultural heritage information • A bridge to help communication between culture people and technical people • A basis for design of new systems e.g. databases, XML DTD, etc. • A common reference for mediation between systems … a lingua franca

  14. Where does it fit in? ISO 21127 SPECTRUM user guide Z39.50XML DTD Conceptualisation analysis implementation Domain of discourse Technical system impact

  15. People using ISO 21127 • Musinfo, Geneva multi-institutional database design • Germanisches Nationalmuseum Nuremberg, XML DTD’s • RLG Cultural Materials, database design • English heritage MIDAS XML, mapping project • Sculpteur, IST project information management • Finnish National Gallery, guide to good practice • ArchTerra, Italian virtual archeology museum …Complete list on the website

  16. Documentation http://cidoc.ics.forth.gr

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