Developing 

Within a story, it's like a factory, in which there are seperate duties being completed to make a final product splendid. Well, a story is just that way. Every component must be done splendid for a splendid final product, which would be your story.

What are the components for a story?

Well, this is what I always build up in my fanfic brainstorms

Characters: 

Main Characters:

Supporting Characters:

Characters Past, Present and Future:

Characters Involvement:

Wealth:

Education:

Family:

School/Work?