I saw the note about oozie earlier in the list. When I first saw it I
though XML == NO ## WAY.
I've developed and opensourced a groovy based workflow software, that is
currently being used for the last 2 years in production by 3 companies (
MySpace, SpecificMedia, and Komli )
It has made things easier for the teams to program difficult business
workflows. Not without flaws but gets the job done, and separates
configuration from business logic.