It helps to think of a workflow as a domain specific language, then it becomes natural to ask yourself "which part of the system that I am building should be de

It helps to think of a workflow as a domain specific language, then it becomes natural to ask yourself "which part of the system that I am building should be described using this language?". By "natural" I mean in the same way that if you were to build a parser, you'd use BNF as a domain specific language to describe it.