Preferred scale

Exponent in base 10 recommended for displaying the data when the data is in unit scale.

For example, PREFERRED_SCALE=6 indicates that observations should be displayed in millions rather than the unit scale.

The main use case for this concept is to render the data in a client that consumes SDMX data (e.g. as a graph generator) where it is very useful to have a default scale preference already stated by the provider. It is intended that the value may be overridden by the consumer.

SDMX, "SDMX Glossary Version 2.0", August 2018