  The perspective we take on a system determines the features and properties of
this system that we are focusing on. It determines where we search for causes
to explain the effects on the system that we observe. It determines the terms
in which we expect the information about the system to be expressed. And it can
also influence the choice of formalism that will be used to convey the
information. using Boolean Automata Networks as prototypes of interaction
systems, this paper means to start making these considerations concrete in
order to draw a practical benefit out of them.
