handover vs shifting

handover

noun
  • The transference of authority, control, power or knowledge from one agency to another, or from one state to another. 

  • the process of transferring an ongoing call or data session from one channel connected to the core network to another channel. 

  • The transfer of goods from the dealer to the purchaser, often of illegal goods. 

  • the process of transferring satellite control responsibility from one earth station to another without loss or interruption of service. 

  • The information passed on in such a case. 

shifting

noun
  • A shift or change; a shifting movement. 

  • The phenomenon by which two or more constituents appearing on the same side of their common head exchange positions to obtain non-canonical order. 

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