Front to back, back to front
“‘You write a script front to back but you re-write it back to front.’ And he [Coppola] proceeds to furiously scrawl the key plot events in reverse order. “If it’s not directly tied to these things, it goes.’”
 ― Francis Ford Coppola in a live interview with DB Sweeney* 
Here is an article at JMWW where I explore this idea and technique.