To handle dag graph with user interference

[mozinrat]

First of all thank you for the work and making it public. I would like to extend the work to make it possible to modify dag on runtime, something like user controlled workflow. Say at some point in dag I want to have user input, how should I be able to handle this. Would appreciate your guidance as I am new to clojure programming.

[sc13-bioinf]

Its probably better to create new workflows, the first step of which is to find the data where the choice the user made was for this workflow.