BioExcel’s webinar series continues with Michael Crusoe, CWL Project co-founder & Community Engineer, who will introduce the Common Workflow Language (CWL) project. In July 2016 the CWL team released standards that enable the portable, interoperable, and executable description of command line data analysis tools and workflow made from those tools. These descriptions are enhanced by CWL’s first class (but optional) support for Docker containers. The state of CWL adoption and examples of bioinformatic collaborations across many continents using CWL will be reviewed. Attendees who want to play with CWL prior or after attending the webinar are invited to go through the “Gentle Introduction to the Common Workflow Language” tutorial on any OS X or Linux machine on their own time.