Two of the major divisions are characters and plot. From the most basic standpoint, characters are the people involved, and plot is the events that happen. However, the two aren’t just mutually exclusive categories but are in fact intimately related. This relationship between plot and characters isn’t just a one-sided relationship, though. It goes the other way. Just as the plot can affect the characters, the characters can also affect the plot. The events of a story shouldn’t just be events randomly jumping out of bushes going “HEY YOU THERE CHARACTER I’M GONNA GET YOU.” To a certain extent, the characters’ own actions and reactions should be pushing the plot forward. Basically, as you progress further in your story, establishing the cause-effect relationships of the events and how the characters’ motivations, actions, reactions, inaction, etc.
Moreover, by considering plot with the characters in mind, it usually becomes easier to think of ideas for what to write. It’s no longer about what can happen but rather what should happen that would have this particular effect on this particular character. If you start out thinking about what the character’s goal is, you can come up with obstacles to that goal. If you want the character to learn some lesson, you can set up conflicts that will teach that lesson.
pic. source.—–> http://greenerpasturescomic.blogspot.com/2012_08_01_archive.html