HorizontalAccuracy

Line	Component	Measure Description
1	Name	absolute circular error at 90 % significance level of biased data
2	Alias	CMAS
3	Data quality element	Absolute or External Positional Accuracy
4	Data quality basic measure
5	Definition	absolute horizontal accuracy of the data’s coordinates, expressed in terms of circular error at 90 % probability given that a bias is present
6	Description	See STANAG 2215 ed7 Appendix 2
7	Parameter
8	Data quality value type	Measure
9	Data quality value structure
10	Source reference	NATO STANAG 2215 ISO 19157 measure n°48
11	Example
12	Identifier	urn:dgiwg:metadata:dmf:1.0:qualityMeasure:CMAS

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Line	Component	Measure Description
1	Name	Point-to-point horizontal accuracy
2	Alias	RelCE90
3	Data quality element	Relative or internal accuracy
4	Data quality basic measure
5	Definition	Uncertainty in the difference in horizontal positions between any 2 points. The value is expressed as a circular error at the 90% confidence level.
6	Description	See STANAG 2215 ed7 Appendix 2
7	Parameter
8	Data quality value type	Measure
9	Data quality value structure
10	Source reference	NATO STANAG 2215
11	Example
12	Identifier	urn:dgiwg:metadata:dmf:1.0:qualityMeasure:RelCE90

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<bold>Line</bold>	<bold>Component</bold>	<bold>Description</bold>
1	Name	circular error at 90 % significant level
2	Alias	circular map accuracy standard (CMAS)
3	Element name	absolute or external accuracy
4	Basic measure	CE90
5	Definition	radius describing a circle, in which the true point location lies with the probability of 90 %
6	Description	See <xref ref-type="sec" rid="sec_G.3.3">G.3.3</xref>
7	Parameter	-
8	Value type	Measure
9	Value structure	-
10	Source reference	-
11	Example	-
12	Identifier	44