Dynamo is a platform for computational design.  Dynamo is a tool to help designers create the rules for a design workflow, and Dynamo performs the calculations or operations a user has requested.  Many processes are rules-based, everything from drawing lines to optimizing a design based on multiple, unique criteria.  If the problem you want to solve can benefit from automation and you can describe what you want to do, Dynamo can help.  Read more about what Dynamo is and does at the Dynamo Primer.