Subscription

A subscription is defined by the association of a DataReader to a Subscriber. To start receiving updates of a publication, the application creates a new DataReader in a Subscriber. This DataReader will be bound to the Topic that describes the data type that is going to be received. The DataReader will then start receiving data value updates from remote publications that match this Topic.

When the Subscriber receives data, it informs the application that new data is available. Then, the application can use the DataReader to get the received data.