Alternative label for the subject.
Optional ddk5DDK5 (Dewey Desimalklassifikasjon 5) classification number. Superseded by WebDewey. Not used when creating new subjects, but preserved for subjects created before the transition to WebDewey in Norway.
Optional focusMap of identifiers for matching records in external systems.
Optional bibbiIdentifier assigned by Biblioteksentralen for authority records. Unique for all authorities independent of type.
Optional qualifierThe qualifier is used to anchor the subject to a specific category in the Dewey hierarchy when the focus term is a phenomenon which appears in more than one place in the hierarchy, e.g. "Kjærlighet : psykologi"
Optional scopeInternal note on the entity, e.g. field of use.
Optional temporalTemporal subdivisions. Consists only of a timespan; named timespans such as "The renaissance" are classed as Event and placed in Subdivision.
Optional webdeweyNorsk WebDewey classification number.
Subjects are used to make works searchable by what the work is about.
Each Subject in Cordata are an entity consisting of a focus, optional subdivision(s), optional qualifier and a Dewey classification number. This allows for the construction of complex subject strings while retaining the identities of the entities that make up the subject string.
For example, in the subject "Verdenskrigen, 1939-1945 - Krigsoperasjoner - Stillehavet : 94 " the elements that make up the subject consist of the Event Verdenskrigen, 1939-1945, which in its turn has the alternative label Andre verdenskrig and is linked to the timespan of the event, the Concept Krigsoperasjoner, the Place Stillehavet, and the Dewey classification number.
Intended viewing order and conventional punctuation is "Focus - Subdivision - Subdivision - Temporal subdivision : qualifier : WebDewey". Subdivision order is chosen by the cataloger according to the PMEST ruleset and needs to be preserved.