E52 Time-Span in version 7.1

Subclass of :

Superclass of: No superclasses found

Scope Note:

This class comprises abstract temporal extents, in the sense of Galilean physics, having a beginning, an end and a duration.

Instances of E52 Time-Span have no semantic connotations about phenomena happening within the temporal extent they represent. They do not convey any meaning other than a positioning on the “time-line” of chronology. The actual extent of an instance of E52 Time-Span can be approximated by properties of E52 Time-Span giving inner and outer bounds in the form of dates (instances of E61 Time Primitive). Comparing knowledge about time-spans is fundamental for chronological reasoning.
Some instances of E52 Time-Span may be defined as the actual, in principle observable, temporal extent of instances of E2 Temporal Entity via the property P4 has time-span (is time-span of): E52 Time-Span. They constitute phenomenal time-spans as defined in CRMgeo (Doerr & Hiebel 2013). Since our knowledge of history is imperfect and physical phenomena are fuzzy in nature, the extent of phenomenal time-spans can only be described in approximation. An extreme case of approximation, might, for example, define an instance of E52 Time-Span having unknown beginning, end and duration. It may, nevertheless, be associated with other descriptions by which we can infer knowledge about it, such as in relative chronologies.

Some instances of E52 may be defined precisely as representing a declaration of a temporal extent, as, for instance, done in a business contract. They constitute declarative time-spans as defined in CRMgeo (Doerr & Hiebel 2013) and can be described via the property E61 Time Primitive P170 defines time (time is defined by): E52 Time-Span.

When used as a common E52 Time-Span for two events, it will nevertheless describe them as being simultaneous, even if nothing else is known.

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 (Chan, 2011)

In First Order Logic:

E52(x) ⇒ E1(x)

Outgoing Direct Properties:

E52 Time-Span. P79 beginning is qualified by : E62 String,

E52 Time-Span. P80 end is qualified by : E62 String,

E52 Time-Span. P81 ongoing throughout : E61 Time Primitive,

E52 Time-Span. P82 at some time within : E61 Time Primitive,

E52 Time-Span. P86 falls within (contains) : E52 Time-Span,

E52 Time-Span. P191 had duration (was duration of) : E54 Dimension

Incoming Direct Properties:

E2 Temporal Entity. P4 has time-span (is time-span of) : E52 Time-Span,

E52 Time-Span. P86 falls within (contains) : E52 Time-Span,

E92 Spacetime Volume. P160 has temporal projection (is temporal projection of) : E52 Time-Span,

E93 Presence. P164 is temporally specified by (temporally specifies) : E52 Time-Span,

E61 Time Primitive. P170 defines time (time is defined by) : E52 Time-Span

Inherited properties:

List of properties

E1 CRM Entity. P1 is identified by (identifies) : E41 Appellation

E1 CRM Entity. P2 has type (is type of) : E55 Type

E1 CRM Entity. P3 has note : E62 String

E1 CRM Entity. P48 has preferred identifier ( is preferred identifier of) : E42 Identifier

E1 CRM Entity. P137 exemplifies (is exemplified by) : E55 Type

Inherited references:

List of references

E7 Activity. P15 was influenced by (influenced) : E1 CRM Entity

E7 Activity. P17 was motivated by (motivated) : E1 CRM Entity

E16 Measurement. P39 measured (was measured by) : E1 CRM Entity

E17 Type Assignment. P41 classified ( was classified by) : E1 CRM Entity

E24 Physical Human-Made Thing. P62 depicts (is depicted by) : E1 CRM Entity

E89 Propositional Object. P67 refers to (is referred to by) : E1 CRM Entity

E31 Document. P70 documents (is documented in) : E1 CRM Entity

E32 Authority Document. P71 lists (is listed in) : E1 CRM Entity

E89 Propositional Object. P129 is about (is subject of) : E1 CRM Entity

E83 Type Creation. P136 was based on (supported type creation) : E1 CRM Entity

E36 Visual Item. P138 represents (has representation) : E1 CRM Entity

E13 Attribute Assignment. P140 assigned attribute to (was attributed by) : E1 CRM Entity

E13 Attribute Assignment. P141 assigned (was assigned by) : E1 CRM Entity