Continuing our relentless cataloging of architectural styles, in this episode we cover the service-based architecture. This is the only style in the book with a bespoke name, created by Mark and Neal, because it appeared in the wild so often as a pragmatic compromise on the extremes of microservices. In this episode, we describe the origins of the style, untangle the name from other architectures that include the word "service", and discuss trade-offs and ramifications beyond what we covered in the book, leading to a wide-ranging conversation.