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title: "Observation Types Module"
canonical: "https://docs.rubiconwater.com/space/WDNC/2053439917/Observation%20Types%20Module"
format: markdown
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> ℹ️ **Where is this module?**
> ℹ️ 
> ℹ️ This module is usually in the **Water Data Transfer** tab of SPM.

The Observation Types module is where you can create and manage observation type definitions for use with WaterML and WDTF Datasets.

# What is an Observation Type?

An observation type describes an observation in a WaterML or WDTF Dataset. Any observations that you add to a dataset must have a defined observation type.

> ℹ️ **Example**
> ℹ️ 
> ℹ️ The observation type includes details of what the data measures, how the data was derived and the units of measurement for the data.

# Layout of the Observation Types Module Screen

![image](media://ab2a0473-7f9c-4016-bf05-a94ece3d5b3a)

*Observation Types module*

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