Objective C is a Programming Language.
It uses message sending between objects as part of its object-oriented model.
Message sending
In Objective-C, method calls are written as messages sent to objects, for example:
[object doThing];This is conceptually different from Message Passing in the Actor Model or broker-based Messaging:
- Objective-C sends messages to objects
- Actors send messages to isolated processes
- Messaging systems send messages through brokers, queues, or topics
Compare
Objective-C message sending is a language-level object-oriented feature, not an infrastructure messaging system.