I wasn't 100 % sure from which angle to judge the paper:
What's the intended audience?
It's dedicated to visualization developers. I'm focussing on the process of creating web-based visualizations, not on visualizations in general. That's why mapping isn't covered in detail. I'm not intending to cover many application scenarios. Just enough to get the idea.
Related: maybe this paper should cut faster to the meat and don't spend so much time explaining a methodological framework of analyzing information viz tools? How would this read as a large blog post or CT article? I'm aware that thesis have an expected format. Still, could the paper get faster to its point?
I'm afraid I can't leave that out. However, once I'm done, I'll probably publish a Substance article containing just the essentials. Deal? :)
In general, I'm missing geographical data vizualisation, mapping. I get that the paper focuses on graphing, but I'm missing at least the distinction.