# Flow

Flow provides tooling for building and running secondary analysis pipelines. The platform supports analysis workflows constructed using Common Workflow Language (CWL) and Nextflow. Each step of an analysis pipeline executes a containerized application using inputs passed into the pipeline or output from previous steps.

You can configure the following components in Illumina Connected Analytics Flow:

* Reference Data — Reference Data for Graphical CWL flows. See [Reference Data](https://help.ica.illumina.com/project/p-flow/f-referencedata).
* Pipelines — One or more tools configured to process input data and generate output files. See [Pipelines](https://help.ica.illumina.com/project/p-flow/f-pipelines).
* Analyses — Launched instance of a pipeline with selected input data. See [Analyses](https://help.ica.illumina.com/project/p-flow/f-analyses).


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