The Collaborative International Dictionary of English v.0.48:

mechanization \mechanization\ n.
   1. The act or process of mechanizing.
      [PJC]

   2. Causing to be performed by machines, especially by a
      highly technical implementation, usually involving
      electronic hardware; as, the mechanization of a
      manufacturing process.

   Syn: automation, mechanisation, high technology, high-tech.
        [WordNet 1.5 +PJC]

WordNet (r) 3.0 (2006):

mechanization
    n 1: the condition of having a highly technical implementation
         [syn: mechanization, mechanisation]
    2: the act of implementing the control of equipment with
       advanced technology; usually involving electronic hardware;
       "automation replaces human workers by machines" [syn:
       automation, mechanization, mechanisation]