In
metadata
Metadata is "data that provides information about other data", but not the content of the data, such as the text of a message or the image itself. There are many distinct types of metadata, including:
* Descriptive metadata – the descriptive ...
, 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
In metadata, the term data element is an atomic unit of data that has precise meaning or precise semantics. A data element has:
# An identification such as a data element name
# A clear data element definition
# One or more representation terms
...
may take another value to represent e.g. ''unknown'' or ''not applicable'', then a
Code
In communications and information processing, code is a system of rules to convert information—such as a letter, word, sound, image, or gesture—into another form, sometimes shortened or secret, for communication through a communication ...
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
The ISO/IEC 11179 Metadata Registry (MDR) standard is an international ISO/IEC standard for representing metadata for an organization in a metadata registry. It documents the standardization and registration of metadata to make data understandabl ...
metadata registry standard as a
representation term
A representation term is a word, or a combination of words, that semantically represent the data type (value domain) of a data element. A representation term is commonly referred to as a ''class word'' by those familiar with data dictionaries. ISO ...
.
Example of Use of Indicator in XML
An example use of the Indicator suffix is if an
XML
Extensible Markup Language (XML) is a markup language and file format for storing, transmitting, and reconstructing arbitrary data. It defines a set of rules for encoding documents in a format that is both human-readable and machine-readable ...
document was required to contain the passing status of a Student in a statewide assessment. The
data element
In metadata, the term data element is an atomic unit of data that has precise meaning or precise semantics. A data element has:
# An identification such as a data element name
# A clear data element definition
# One or more representation terms
...
would be:
Standards that use the indicator representation term
The following metadata registry standards use the term indicator
*
ebXML
Electronic Business using eXtensible Markup Language, commonly known as e-business XML, or ebXML (pronounced ee-bee-ex-em-el, 'bi,eks,em'el as it is typically referred to, is a family of XML based standards sponsored by OASIS and UN/CEFACT whose m ...
*
NIEM
NIEM ( ) originated as an XML-based information exchange framework from the United States. NIEM also supports NIEM JSON exchanges. NIEM is currently developinthe NIEM Metamodel and Common Model Formatwhich can be expressed in any data serializati ...
*
GJXDM
The Global Justice XML Data Model (GJXDM or Global JXDM) is a data reference model for the exchange of information within the justice and public safety communities. The Global JXDM is a product of the Global Justice Information Sharing Initiative' ...
See also
*
Metadata
Metadata is "data that provides information about other data", but not the content of the data, such as the text of a message or the image itself. There are many distinct types of metadata, including:
* Descriptive metadata – the descriptive ...
*
ISO/IEC 11179
The ISO/IEC 11179 Metadata Registry (MDR) standard is an international ISO/IEC standard for representing metadata for an organization in a metadata registry. It documents the standardization and registration of metadata to make data understandabl ...
*
Representation term
A representation term is a word, or a combination of words, that semantically represent the data type (value domain) of a data element. A representation term is commonly referred to as a ''class word'' by those familiar with data dictionaries. ISO ...
*
Code
In communications and information processing, code is a system of rules to convert information—such as a letter, word, sound, image, or gesture—into another form, sometimes shortened or secret, for communication through a communication ...
References
https://web.archive.org/web/20110927233605/https://www.niem.gov/documentsdb/Documents/Technical/NIEM-NDR-1-3.pdf page 65
{{DEFAULTSORT:Indicator (Metadata)
Metadata
Representation term