scenario vs storyline

scenario

noun
  • An outline of the plot of a dramatic or literary work. 

  • An outline or model of an expected or supposed sequence of events. 

  • A screenplay itself, or an outline or a treatment of it. 

storyline

noun
  • The plot of a story. 

  • A narrative description of a given modeling scenario, highlighting its main characteristics and underlying technical and socioeconomic drivers. 

How often have the words scenario and storyline occurred in a corpus of books? (source: Google Ngram Viewer )