Service Bus topics
Topics are another communication model that provides a publish/subscribe architecture pattern. This allows a message to be consumed by many subscribers, and each subscriber is able to process the message independently.
The following image shows a component publishing a message to a topic with two subscribers. Each subscriber setting up a Subscription filter on the purchase amount.
![](https://static.packt-cdn.com/products/9781786465573/graphics/image_10_002.jpg)