Topic: forwarding parameters between different views

Hello,
I've many views wich call each other, but I must pass parameters from the first view to the last view, exemple : view A gives params a, b, c, d, e to view B. Then view B uses the parameter a and must forward b,c,d,e to the next view C....
how can I pass parameters from A to C without being obliged to recode them in B???
N.B : I must not use the session variables!!
thanks