---
title: "Default workers"
slug: "default-workers"
abstract: ""
---
# Default workers

The  includes three default workers:

- [Projection worker](https://doc.sitecore.com/xp/en/developers/105/sitecore-experience-platform/projection-worker.html "Projection worker") (`ProjectionWorker`)
- [Training worker](https://doc.sitecore.com/xp/en/developers/105/sitecore-experience-platform/training-worker.html "Training worker") (`TrainingWorker`)
- [Merge worker](https://doc.sitecore.com/xp/en/developers/105/sitecore-experience-platform/merge-worker.html "Merge worker") (`MergeWorker`)

There is also a base evaluation worker (`EvaluationWorker`) that you can base your own evaluation workers on.