Welcome to the fourth episode of the Software Architecture Microsoft Platform mini course. It's the beginning of a story that ends with episode 5.

Together, these episodes present an architectural pattern that combines the best of two worlds. The world of fast and easy access to query data, and the world of reliable Master Data. Master Data, stored and protected by Information Services.

Episode 4 builds up to a presentation of a synchronous publish and subscribe pattern. A pattern that gives user applications direct and fast access to all the query data it uses. A pattern that uses Master Data to bring high quality to query data. And that doesn't use the Azure Service Bus.
Episode 5 pulls in the Azure Service Bus to change that pattern. To reduce its complexity.
The Service Bus relieves your components of many small and important tasks. Tasks that they had to do in the Episode 4 version. Tasks that made that version more complex than the one using the Service bus.

The moral of these two episodes goes against what many believe. It's that the Azure Service Bus can reduce complexity in advanced applications.