Observable Property::StatisticalQualifier

: Public <<DataType>> Class

Created:	8/08/2012 12:04:01 PM
Modified:	20/06/2015 2:33:51 PM

Project:
Author:	Jeremy Tandy
Version:	1.0
Phase:	1.0
Status:	Proposed
Complexity:	Easy
Difficulty:
Priority:
Multiplicity:
Advanced:
UUID:	{7AF58FF7-0174-4943-AE09-D3AD80AC4369}
Appears In:	Context diagram: ObservableProperty

An observed physical property may be represent a statistical summary with respect to a base property; e.g. maximum UV index over a 3-hour period. The class 'StatisticalQualifier' defines the type of statistical function plus the mechanism that is used to aggregate the base property values to create the statistical summary: length, area, volume, duration or other. Statistical summary properties may be defined by chaining a set of statistical operations together. For example: mean daily maximum temperature over a month period comprises two statistical operations with respect to the base property 'air temperature' - (i) maximum over a 24-hour duration, (ii) mean over a 1-month duration.

Attributes
Associations To
Associations From
Tagged Values

Attribute

Public CharacterString
description

Details:

Alias:
Initial:
Stereotype:
Ordered:
Range:	Range:0 to 1
Transient:	False
Derived:	False
IsID:	False

sequenceNumber=1

Notes:

The attribute 'description' provides a textual description of the statistical qualification applied to the base observable physical property.

Public Area
aggregationArea

Details:

Alias:
Initial:
Stereotype:
Ordered:
Range:	Range:0 to 1
Transient:	False
Derived:	False
IsID:	False

sequenceNumber=2

Notes:

The attribute 'aggregationArea' defines the spatial area over which the statistical function is applied in order to determine the statistical summary.

Public Length
aggregationLength

Details:

Alias:
Initial:
Stereotype:
Ordered:
Range:	Range:0 to 1
Transient:	False
Derived:	False
IsID:	False

sequenceNumber=3

Notes:

The attribute 'aggregationLength' defines the spatial length over which the statistical function is applied in order to determine the statistical summary.

Public TM_PeriodDuration
aggregationTimePeriod

Details:

Alias:
Initial:
Stereotype:
Ordered:
Range:	Range:0 to 1
Transient:	False
Derived:	False
IsID:	False

sequenceNumber=4

Notes:

The attribute 'aggregationTimePeriod' defines the temporal duration over which the statistical function is applied in order to determine the statistical summary.

Public Volume
aggregationVolume

Details:

Alias:
Initial:
Stereotype:
Ordered:
Range:	Range:0 to 1
Transient:	False
Derived:	False
IsID:	False

sequenceNumber=5

Notes:

The attribute 'aggregationVolume' defines the spatial volume over which the statistical function is applied in order to determine the statistical summary.

Public Any
otherAggregation

Details:

Alias:
Initial:
Stereotype:
Ordered:
Range:	Range:0 to 1
Transient:	False
Derived:	False
IsID:	False

sequenceNumber=6

Notes:

The attribute 'otherAggregation' defines the any type of aggregation (other than duration, length, area or volume) over which the statistical function is applied in order to determine the statistical summary; e.g. prevailing visibility is [approximately] defined as a mean visibility in each horizontal direction.

Public StatisticalFunctionCode
statisticalFunction

Details:

Alias:
Initial:
Stereotype:
Ordered:
Range:
Transient:	False
Derived:	False
IsID:	False

sequenceNumber=7

Notes:

The attribute 'statisticalFunction' defines the type of statistical function that is applied to the base observed property values in order to generate the statistical summary.

Element	Source Role	Target Role
«DataType» StatisticalQualifier Class	Name:	Name: derivedFrom Statistical summary properties may be defined by chaining a set of statistical operations together. For example: mean daily maximum temperature over a month period comprises two statistical operations with respect to the base property 'air temperature' - (i) maximum over a 24-hour duration, (ii) mean over a 1-month duration.
Details:

Element	Source Role	Target Role
QualifiedObservableProperty Class	Name:	Name: qualifier The association role 'qualifier' references the StatisticalQualifier ?DataType? that specifies the statistical function and aggregation patter applied to the base physical property in order to define a statistical summary property.
Details:
«DataType» StatisticalQualifier Class	Name:	Name: derivedFrom Statistical summary properties may be defined by chaining a set of statistical operations together. For example: mean daily maximum temperature over a month period comprises two statistical operations with respect to the base property 'air temperature' - (i) maximum over a 24-hour duration, (ii) mean over a 1-month duration.
Details:

Tag	Value
isCollection	false
Details: Values: true,false Default: false Description: Identifies the data type as an object collection.
noPropertyType	false
Details: Values: true,false Default: false Description: urpress creation of a standard property type that supports inline encoding (applies to ISO 19136:2007 encoding rule). Always set to false in INSPIRE.