This HTML5 document contains 17 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Namespace Prefixes

PrefixIRI
skoshttp://www.w3.org/2004/02/skos/core#
rdfshttp://www.w3.org/2000/01/rdf-schema#
ecrmhttp://erlangen-crm.org/current/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
owlhttp://www.w3.org/2002/07/owl#
xsdhhttp://www.w3.org/2001/XMLSchema#

Statements

Subject Item
ecrm:E52_Time-Span
rdf:type
owl:Class
rdfs:label
E52 Time-Span
rdfs:comment
Scope note: This class comprises abstract temporal extents, in the sense of Galilean physics, having a beginning, an end and a duration. Time Span has no other semantic connotations. Time-Spans are used to define the temporal extent of instances of E4 Period, E5 Event and any other phenomena valid for a certain time. An E52 Time-Span may be identified by one or more instances of E49 Time Appellation. Since our knowledge of history is imperfect, instances of E52 Time-Span can best be considered as approximations of the actual Time-Spans of temporal entities. The properties of E52 Time-Span are intended to allow these approximations to be expressed precisely. An extreme case of approximation, might, for example, define an E52 Time-Span having unknown beginning, end and duration. Used as a common E52 Time-Span for two events, it would nevertheless define them as being simultaneous, even if nothing else was known. Automatic processing and querying of instances of E52 Time-Span is facilitated if data can be parsed into an E61 Time Primitive. Examples: - 1961 - from 12-17-1993 to 12-8-1996 - 14h30 - 16h22 4th July 1945 - 9.30 am 1.1.1999 to 2.00 pm 1.1.1999 - duration of the Ming Dynasty In First Order Logic: E52(x) ⊃ E1(x)
rdfs:subClassOf
_:vb10045 _:vb10046 _:vb10047 ecrm:E1_CRM_Entity
skos:notation
E52
Subject Item
_:vb10045
rdf:type
owl:Restriction
owl:onProperty
ecrm:P4i_is_time-span_of
owl:someValuesFrom
ecrm:E2_Temporal_Entity
Subject Item
_:vb10046
rdf:type
owl:Restriction
owl:onProperty
ecrm:P84_had_at_most_duration
owl:maxCardinality
1
Subject Item
_:vb10047
rdf:type
owl:Restriction
owl:onProperty
ecrm:P83_had_at_least_duration
owl:maxCardinality
1