This talk describes the constraints of connected systems design and presents common design patterns to address some of the challenges developers will face as they spend more time connecting services and components instead of developing new ones. Along the way he asks: Is coupling really so bad? Why is REST popular? Do we need distributed transactions?
In this presentation, Google architect Gregor Hohpe introduces various concepts for to manage more complex interactions between services, including conversations, choreography, and orchestration. He provides a down-to-earth look at these concepts along with the associated Web services standards like WS-BPEL and WS-CDL, and identifies common patterns in service conversation.
Gregor Hohpe debunks many unrealistic claims about SOA and addresses the technical issues, such as the false sense of simplicity, differences to established programming models and the importance of documentation. He also criticizes what he calls "Doodleware", i.e. tools that aim to hide complexity behind a graphical process model notation, and suggests deriving models from running systems.
In this interview, recorded at QCon London, Google architect Gregor Hohpe talks to Stefan Tilkov about his new work on conversation patterns. Building upon his earlier work on enterprise integration patterns, Gregor sees conversation patterns as playing a critical role in real-world interactions, with analogies in the natural world.
