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Indicator (metadata)
View on WikipediaIn metadata, an indicator is a Boolean value that may contain only the values true or false. The definition of an Indicator must include the meaning of a true value and should also include the meaning if the value is false.
If a data element may take another value to represent e.g. unknown or not applicable, then a Code should be used instead of an Indicator, and the meanings of all possible values should be clearly defined.
The suffix Indicator is used in ISO/IEC 11179 metadata registry standard as a representation term.
Example of Use of Indicator in XML
[edit]An example use of the Indicator suffix is if an XML document was required to contain the passing status of a Student in a statewide assessment. The data element would be:
<StudentPassedAssessmentIndicator>true</StudentPassedAssessmentIndicator>