---
layout: default
navsection: userguide
title: "Writing a CWL workflow"
...

{% include 'what_is_cwl' %}

{% include 'tutorial_expectations' %}

h2. Registering a CWL workflow

Use @--create-workflow@ to register a CWL workflow with Arvados.

The following examples assume that you have prepared to run arvados-cwl-runner tool as explained in the "Using Common Workflow Language":{{site.baseurl}}/user/topics/running-workflow-command-line.html.textile.liquid page.

{% include 'register_cwl_workflow' %}

h2. Running a CWL workflow

h3. Running a workflow at command prompt

Not yet implemented

h3. Running a workflow using Workbench

The workflow can also be executed using Workbench. Go to the Workbench Dashboard and click the <span class="btn btn-sm btn-primary"><i class="fa fa-fw fa-gear"></i> Run a process...</span> button and select the desired workflow.