O'Reilly logo
  • Nguyen Tuan thinks this is interesting:

The event channels can be either message queues or message topics, although message topics are most widely used with the mediator topology so that processing events can be processed by multiple event processors (each performing a different task based on the processing event received). 

From

Cover of Software Architecture Patterns

Note

event channels có thể là message queue hoặc message topics , mặc dù topic exchange thường được sử dụng hơn trong mediator topology để cho sub-event có thể được xử lý bởi nhiều event processor