Indicator (metadata)

Indicator (metadata)

In 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

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:

true

tandards that use the indicator representation term

The following metadata registry standards use the term indicator
* ebXML
* NIEM
* GJXDM

ee also

metadata
ISO/IEC 11179
Representation term
Code


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