Class: E52_Time-Span
http://erlangen-crm.org/100707/E52_Time-Span
Asserted Class Hierarchy
Annotations (1)
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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.
Functional Units:
1. Acquisition Information;
6. Condition Information;
7. Deaccession and Disposal Information;
18. Object Association Information;
19. Object Collection Information;
20. Object Entry Information;
22. Object Number Information;
23. Object Production Information;
28. Recorder Information;
31. Spatial - Temporal Relationship;
34. Time-Span Information." (string)
Superclasses (8)
Disjoints (1)
Usage (16)