Qualifier variables describe the results of an observation with text or numeric values.it is divided into 5 subclass which are listed below
1.Grouping Qualifiers—These are used to group together a collection of observations within the same domain.
- Synonym Qualifier—- It specify the alternative name of a particular variables.
- Result qualifier— It describes the specific result associated with the topic variable for a finding.it is the answer to the question raised by the topic variable.
- Variable qualifier– These are used to further modify or describe a specific variable within an observation and it only meaningful in the context of the variable if they qualify.
- Record qualifier-it defines the additional attributes of the observations.
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