[BCVTB] what do the open and closed relation arrows represent? (and how to draw them)
This is a snapshot of the c-room. (default example in BCVTB)
What option do I drag and drop to create a relation between two components? (TSet to Adder/Subtracter)
(I am able to understand that the arrows represent dataflow as a sequence in time)
Also, what is the difference between a black-head arrow and a transparent head relation arrow