[bunkat]

The participants in the study were IT professionals that managed servers for a living. Servers and actions regarding servers were definitely within their domain experience. So we did exactly what you were suggesting we did.

I still think that connecting up a hundred little boxes is just as complicated as actually looking at code syntax, but even more so since everything is a black box. How do you suggest people fix errors in the output when the only action they can take is to connect boxes with lines?

[meemoo]

I'm imagining a debug view that slows down the flow and shows data traveling through the graph, so you can see it at every step.

Or with the circuit board metaphor, a debug "probe" that would show the data (or a graph of data) traveling through that point.

Different debugging tools will make sense in different domains, but we're considering the challenge.