Fundamental tools of Notification services

Question

What are the fundamental tools of Notification services?

Answer 1

The given terms are the tools of Notification Service as follows:

Event: an action which occurred affecting the given data.

Subscriber: an entity which wants being notified on incidence of an event.

Subscription: an act by that subscriber explains when and what he needs to be notified as.

Notification: It is a channel of communication.