What are the functionalities of the ORB (Object Request Broker)?

What are the functionalities of the ORB (Object Request Broker)?

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The ORB is a building block of CORBA. When an application component wants to access the services of another application component, it first obtains an object reference of that component. It can then invoke the methods on this object.

The ORB receives parameters from the component that is calling this method and marshals these parameters. The ORB also unmarshals the returned parameters, i.e., converts into a format that the calling component can understand.

Note: Marshalling is the process of converting parameters into a format that can be transmitted over a network, whereas unmarshaling is the reverse process of marshalling. It converts the network data into output parameters.

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