# Protocols

A protocol is an organized workflow for proofreading in NeuTu. It usually consists of a list of tasks, and the user can go through the tasks one by one to finish an assignment without getting lost in the image data. The behavior of a protocol is defined by its type, which can be one of the following:

* Synapse prediction
* Orphan link
* [Connection validation](https://janelia-flyem.gitbook.io/neutu/protocols/connection-validation): for validating synapse connections

![Start a protocol](https://2926737796-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Ld57Fj27nUB-NnjPb7c%2F-MMVx2fVPk52pyNyj5Bh%2F-MMVxMGnoUXhaik95BcE%2Fimage.png?alt=media\&token=2251d3af-b5c8-4bac-84aa-0a45c40a221c)