commissioning vs delegation

commissioning

noun
  • The process of assuring that all systems and components of a major piece of equipment, a process, a building or similar are designed, installed and tested according to the operational requirements of the owner or final client. 

delegation

noun
  • A method-dispatching technique describing the lookup and inheritance rules for self-referential calls. 

  • An act of delegating. 

  • The act whereby or constellation in which the performance of an obligation (owed to an obligee, presuming its validity; irrespective of the obligation as the target of the delegation, rarely called delegatary) is assigned by its debtor (delegator, obligor) to and towards another party (delegatee, delegate) 

  • A group of delegates used to discuss issues with an opponent. 

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