blueprint vs drafting

blueprint

noun
  • A detailed technical drawing (now often in some electronically storable and transmissible form). 

  • A print produced with this process. 

  • Any detailed plan, whether literal or figurative. 

  • A type of paper-based reproduction process producing white-on-blue images, used primarily for technical and architecture's drawings, now largely replaced by other technologies. 

verb
  • To make a blueprint for. 

  • To make a detailed operational plan for. 

drafting

noun
  • The act or process of producing a technical drawing, or draft. 

  • A method of preparing fibers for weaving. 

  • The practice among ground vehicle drivers or cyclists of following in a close line to reduce wind resistance. 

  • A profession, usually related to making technical drawings for architecture, engineering, or manufacturing. 

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