layout vs purchase order

layout

noun
  • The process of arranging editorial content, advertising, graphics and other information to fit within certain constraints. 

  • A map or a drawing of a construction site showing the position of roads, buildings or other constructions. 

  • A specification of an integrated circuit showing the position of the physical components that will implement the schematic in silicon. 

  • A structured arrangement of items within certain limits. 

  • A plan for such arrangement. 

  • The act of laying out something. 

purchase order

noun
  • A commercial document issued by a buyer to a seller, indicating the type, quantities and agreed prices for products or services the seller will provide to the buyer. 

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