About
A label is an attribute that describes its entity or relationship with nominal data.
A label is also known as:
- a tag
- a class
- or just a nominal attribute
- a classifier
- a group
- a category
Classifiers / Label can be organized in hierarchies.
They are the output of a classification process
In dimensional data, they are known as dimensional attribute.
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Usage
They are used to label, filter and/or group on whereas additive numeric attribute are used to aggregate over.
They also create an aggregation relationship between entities.
Identifier
There is two kind of label identifier: