An attribute definition defines which attributes are connected to each template.
When defining the attribute, we are telling the system what type of data will be connected to it (time series or tabular), as well as what template and attribute group it will belong to.
Here is an example of an attribute definition, with the name of the associated attribute groups and templates:
| Attribute Definition Name | Data Type | Template Definition | Attribute Group | Description |
| THP | TimeSeries | Oil Producing Well | Operating Data | Tubing Head Pressure of an oil well |
| Oil Flowrate | TimeSeries | Oil Producing Well | Production Data | The flow rate of oil from the well |
| THP | TimeSeries | Gas Producing Well | Operating Data | Tubing Head Pressure of a gas well |
| Gas Flowrate | TimeSeries | Gas Producing Well | Production Data | The flow rate of gas from the well |