18 lines
966 B
Markdown
18 lines
966 B
Markdown
---
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layout: documentation
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title: Transformations Configuration
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---
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# Transformations Configuration
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Transformations are used to translate data from a cluttered or technical raw value to a processed or human-readable representation.
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They are often useful, to **interpret received Item values**, like sensor readings or state variables, and to translate them into a human-readable or better processible format.
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Details about the usage of Transformations and the available Transformation services can be found in the [main Transformation services article](/addons/#transform).
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Be aware that a transformation service just as any other openHAB add-on needs to be installed prior to first usage.
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The configuration folder `$OPENHAB_CONF/transform` is home for Transformation service files.
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Those files contain service specific data or logic and their syntax depends on the Transformation service.
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Some but not all Transformation services rely on such additional files.
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