> ## Documentation Index
> Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt
> Use this file to discover all available pages before exploring further.

# DEE output columns

> Overview of the DEE output column types configurable in the `columns` element of a DEE order, spanning level and measure based columns, static values, and extraction procedure derived values.

The `columns` element describes how output columns will be populated.

The output file's columns map to one of the following types:

* Level ([levelOutputColumn](/user-guide/dee-order-structure/output/output-columns/levelOutputColumn))
* Lowest Level ([lowestLevelOutputColumn](/user-guide/dee-order-structure/output/output-columns/lowestLevelOutputColumn))
* Field ([fieldOutputColumn](/user-guide/dee-order-structure/output/output-columns/fieldOutputColumn))
* Measure ([measureOutputColumn](/user-guide/dee-order-structure/output/output-columns/measureOutputColumn))
* Static value ([echoOutputColumn](/user-guide/dee-order-structure/output/output-columns/echoOutputColumn))
* Value which requires some logic ([extractProcValueOutputColumn](/user-guide/dee-order-structure/output/output-columns/extractProcValueOutputColumn))