The Flood Risk Module is for creation of the Flood Risk Database, Flood Risk Map and Flood Risk Report. There are numerous tools and process to automate much of this module.
The first step is to create a Flood Risk Project, following the steps outlined in the Create Project section of the wiki.
Once the Project is created, you can start populating the Flood Risk Database. From the Flood Risk Database, you can produce the Flood Risk Map and Flood Risk Report.