advisory vs notification

advisory

noun

  • A warning. 

adj

  • Able to give advice. 

  • Containing advice; advising. 

notification

noun

  • The act of notifying. 

  • A text message on a cell phone. 

  • A specific piece of information that serves to notify. 

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