Before revision: Middleware categories Remote procedure call or RPC-based middleware Object request broker or ORB-based middleware Message Oriented Middleware or MOM-based middleware All these models make it possible for one software component to affect the behavior of another component over a network.
After revision: Middleware categories Remote procedure call or RPC-based middleware Object request broker or ORB-based middleware Message-oriented middleware or MOM-based middleware All these models make it possible for one software component to affect the behavior of another component over a network.