Network chart
Network charts, it turns out, are worthy of their own discussion page.
(Go back to Chart_research for some perspective. )
A Beginning
Here's what we start with. My computer has in it a chart that represents your computer -- it might even be the same chart you run your computer by, but fulfilled to much less precision. Indeed, I might well have charts representing different protocols that I can use to simplify my representation of your computer.
On my computer, then, I can run security analyses of the transfer of data from my computer to yours. The interesting question is how these several charts -- one for each computer on the network, say -- are combined and what happens when they are. I think the question of Chart Reversibility holds the most promising answer to this.