Temporal Reference System – SP11
SP11 Temporal Reference System
Subclass of:
Scope note:
This class compromises systems(S) that are used to describe
positions and extents in a Reference Time. If relativistic effects are negligible in the wider spacetime area of interest and the speeds of
associated things, then there is only one unique global reference time. The typical way to measure time is to count the cycles of a periodic
process for which we have a hypothesis of constant frequency, such as oscillations of a crystal, molecular arrangement, rotation of earth around
itself or around the sun. The origin for a Temporal Reference System is fixed on a reference event. As long as the number of cycles passed from
that reference event until now are known, the temporal reference system exists (E) and expressions in this Reference System can be interpreted
with respect to the Reference Time. A temporal reference system represents time as a continuous linear interpolation over the infinit series of
cycles extended from the reference event to he past and the future, regardless of the temporal position of the mathematical point zero of an
instance of E61 Time Primitive, such for instance the gregorian calender begins with the event an arbitrary positiong the point zero as beeing
the date of the „Birth of Christ“. The actual date of birth of christ is regarded to be unknown and therefor is not the reference event. The
identity of a Temporal Reference System is defined through the type of periodic process it is based on, the reference event and through the
distance of the reference event to the position of the mathematical point zero (I). A value in the Reference Time is a temporal position
measured relative to a temporal reference system. ISO 8601 specifies the use of the Gregorian Calendar and 24 hour local or Coordinated
Universal Time (UTC) for information interchange. In ISO 19108 three common types of temporal reference systems are explicitly stated: calendars
(used with clocks for greater resolution), temporal coordinate systems, and ordinal temporal reference systems. Calendars and clocks are both
based on interval scales. A calendar is a discrete temporal reference system that provides a basis for defining temporal position to a
resolution of one day. A clock provides a basis for defining temporal position within a day. A clock must be used with a calendar in order to
provide a complete description of a temporal position within a specific day. Every calendar provides a set of rules for composing a calendar
date from a set of elements such as year, month, and day. In every calendar, years are numbered relative to the date of a reference event that
defines a calendar era [ISO 19108]. Specifying temporal position in terms of calendar date and time of day complicates the computation of
distances between points and the functional description of temporal operations. A temporal coordinate system may be used to support applications
of this kind. [ISO 19108]. Ordinal temporal reference systems as specified in ISO 19108 are no instances of SP11 Temporal Reference Systems as
they do not define cycles of a periodic process but define a system of time intervals based on reverence periods related to certain natural or
cultural phenomena. Examples: • Gregorian Calendar • Coordinated Universal Time (UTC) • Julian date • Greenwich time • ISO 8601
Examples:
No example yet.
In First Order Logic:
- SP11(x) ⊃ E29(x)
Outgoing properties:
Incoming properties:
Scope Notes
Show | Scope note | Language | Namespace | View details | Comments |
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This class compromises systems(S) that are used to describe positions and extents in a Reference Time. If relativistic effects are negligible in the wider spacetime area of interest and the speeds of associated things, then there is only one unique global reference time. The typical way to measure time is to count the cycles of a periodic process for which we have a hypothesis of constant frequency, such as oscillations of a crystal, molecular arrangement, rotation of earth around itself or around the sun. The origin for a Temporal Reference System is fixed on a reference event. As long as the number of cycles passed from that reference event until now are known, the temporal reference system exists (E) and expressions in this Reference System can be interpreted with respect to the Reference Time. A temporal reference system represents time as a continuous linear interpolation over the infinit series of cycles extended from the reference event to he past and the future, regardless of the temporal position of the mathematical point zero of an instance of E61 Time Primitive, such for instance the gregorian calender begins with the event an arbitrary positiong the point zero as beeing the date of the „Birth of Christ“. The actual date of birth of christ is regarded to be unknown and therefor is not the reference event. The identity of a Temporal Reference System is defined through the type of periodic process it is based on, the reference event and through the distance of the reference event to the position of the mathematical point zero (I). A value in the Reference Time is a temporal position measured relative to a temporal reference system. ISO 8601 specifies the use of the Gregorian Calendar and 24 hour local or Coordinated Universal Time (UTC) for information interchange. In ISO 19108 three common types of temporal reference systems are explicitly stated: calendars (used with clocks for greater resolution), temporal coordinate systems, and ordinal temporal reference systems. Calendars and clocks are both based on interval scales. A calendar is a discrete temporal reference system that provides a basis for defining temporal position to a resolution of one day. A clock provides a basis for defining temporal position within a day. A clock must be used with a calendar in order to provide a complete description of a temporal position within a specific day. Every calendar provides a set of rules for composing a calendar date from a set of elements such as year, month, and day. In every calendar, years are numbered relative to the date of a reference event that defines a calendar era [ISO 19108]. Specifying temporal position in terms of calendar date and time of day complicates the computation of distances between points and the functional description of temporal operations. A temporal coordinate system may be used to support applications of this kind. [ISO 19108]. Ordinal temporal reference systems as specified in ISO 19108 are no instances of SP11 Temporal Reference Systems as they do not define cycles of a periodic process but define a system of time intervals based on reverence periods related to certain natural or cultural phenomena. Examples: • Gregorian Calendar • Coordinated Universal Time (UTC) • Julian date • Greenwich time • ISO 8601 | en | 0 |
Examples
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Additional notes
Show | Notes | Language | Namespace | View details | Comments |
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Identifier : SP11
Labels
Label | Language | Last updated | View details | Comments |
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Temporal Reference System * | en | 2018-06-22 | 0 |
* : Standard label for this language
Namespace
Namespace | Last updated |
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CRMgeo version 1.2 | 2020-09-02 |
Parent classes
Class | Class namespace | Relation defined in | Justification | View details | Comments |
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E29 Design or Procedure | CIDOC CRM version 6.2 | CRMgeo version 1.2 | 0 |
Ancestor classes
Class | Depth | Class namespace |
---|---|---|
E1 CRM Entity | 7 | CIDOC CRM version 6.2 |
E1 CRM Entity | 8 | CIDOC CRM version 6.2 |
E1 CRM Entity | 9 | CIDOC CRM version 6.2 |
E28 Conceptual Object | 4 | CIDOC CRM version 6.2 |
E70 Thing | 5 | CIDOC CRM version 6.2 |
E70 Thing | 6 | CIDOC CRM version 6.2 |
E71 Man-Made Thing | 5 | CIDOC CRM version 6.2 |
E72 Legal Object | 4 | CIDOC CRM version 6.2 |
E73 Information Object | 2 | CIDOC CRM version 6.2 |
E77 Persistent Item | 6 | CIDOC CRM version 6.2 |
E77 Persistent Item | 7 | CIDOC CRM version 6.2 |
E89 Propositional Object | 3 | CIDOC CRM version 6.2 |
E90 Symbolic Object | 3 | CIDOC CRM version 6.2 |
Child and descendant classes
Class | Depth | Class namespace |
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Related classes
Relation | Class | Justification | Relation defined in | View details | Comments |
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Outgoing properties (this class is domain)
Domain | Property identifier | Range | Namespace |
---|---|---|---|
SP11 Temporal Reference System | Q19 has reference event | E5 Event | CRMgeo version 1.2 |
Outgoing properties (inherited from ancestors)
Domain | Property identifier | Range | Namespace |
---|---|---|---|
SP11 Temporal Reference System (is a E1 CRM Entity) | P1 is identified by (identifies) | E41 Appellation | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E1 CRM Entity) | P2 has type (is type of) | E55 Type | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E1 CRM Entity) | P3 has note | E62 String | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E1 CRM Entity) | P48 has preferred identifier (is preferred identifier of) | E42 Identifier | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E1 CRM Entity) | P137 exemplifies (is exemplified by) | E55 Type | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E1 CRM Entity) | P22 has quality (is quality of) | C28 Quantifiable Quality | HistDMI top-level ontology – ongoing |
SP11 Temporal Reference System (is a E1 CRM Entity) | P10 time-independent entity association | E1 CRM Entity | HistDMI top-level ontology – ongoing |
SP11 Temporal Reference System (is a E1 CRM Entity) | P39 has social connotation (is social connotation of) | C30 Social Connotation | HistDMI top-level ontology – ongoing |
SP11 Temporal Reference System (is a E28 Conceptual Object) | P149 is identified by (identifies) | E75 Conceptual Object Appellation | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E29 Design or Procedure) | P68 foresees use of (use foreseen by) | E57 Material | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E29 Design or Procedure) | P69 has association with (is associated with) | E29 Design or Procedure | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E70 Thing) | P43 has dimension (is dimension of) | E54 Dimension | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E70 Thing) | P101 had as general use (was use of) | E55 Type | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E70 Thing) | P130 shows features of (features are also found on) | E70 Thing | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E71 Man-Made Thing) | P102 has title (is title of) | E35 Title | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E71 Man-Made Thing) | P103 was intended for (was intention of) | E55 Type | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E72 Legal Object) | P104 is subject to (applies to) | E30 Right | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E72 Legal Object) | P105 right held by (has right on) | E39 Actor | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E73 Information Object) | P165 incorporates (is incorporated in) | E90 Symbolic Object | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E77 Persistent Item) | P8 is subjected to (is subject of) | C14 Subjection to a Right | Social, legal and economic life (HistDMI) ongoing |
SP11 Temporal Reference System (is a E89 Propositional Object) | P67 refers to (is referred to by) | E1 CRM Entity | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E89 Propositional Object) | P129 is about (is subject of) | E1 CRM Entity | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E89 Propositional Object) | P148 has component (is component of) | E89 Propositional Object | CIDOC CRM version 6.2 |
SP11 Temporal Reference System (is a E90 Symbolic Object) | P106 is composed of (forms part of) | E90 Symbolic Object | CIDOC CRM version 6.2 |
Incoming properties (this class is range)
Domain | Property identifier | Range | Namespace |
---|---|---|---|
SP12 Spacetime Volume Expression | Q17 is expressed in terms of | SP11 Temporal Reference System | CRMgeo version 1.2 |
SP14 Time Expression | Q15 is expressed in terms of | SP11 Temporal Reference System | CRMgeo version 1.2 |
Incoming properties (inherited from ancestors)
Profiles using this class
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