Yes, the diagram shows the flowchart of what would happen. But, the details of every step may vague, still needs to be clarified. I'll read through this and do some research.
I think it is very easy to understand. They tried to simplified all that stuff in the whitepaper. The procedure is still quite understandable if you can interpret the Diagram. If you want a more detailed explanation you can find it in the whitepaper. Reading the whitepaper and seeing the diagram will complement ones understanding about ARIZN. Nicely done.