I don't get how this is the same thing at all. This topic is full of horrible analogies so far!
Script Review: Figure out the components required for the type of story that you are trying to tell. Get a feel for the characters, their personalities, and by extension - hopefully, their appearances. Get a rough sketch in your mind of the areas that the story takes place.
Cast Selection: Use charas to start putting sprites together who look like they can fill the roles in your
script. Alternatively, create your own from scratch, or grab some rips/rtp.
Location Scouting: Find tile/chipsets that will serve well for the locations planned out in the
script.
Set Design: When the above fails and you have to create your own backgrounds to portray the scene as outlined in the
scriptIt seemed fairly self explanatory to me.