==== Object Request Broker (ORB) ====

  * First introduced to object-oriented programming paradigm in software integration. It extends the concept of objects in the "distant objects".
  * Distant objects communicate with each other
     * they can share both data and methods
  * Known implementations: Corba and Java-RMI
  * Marshalling/Unmarshalling concepts appear. Platform independent serialization of the transferred parameters (or data)
  * Language independent interface description methods with Corba IDL (interface definition language)
  * Initial concept of Service Registry.
     * services are browse-able in an uniform manner.
  * Despite its antiquity is still supported in the modern application servers (like JBoss, IBM Websphere)