An Enterprise Service Bus is meanwhile a mandatory component for every modern development. Knowing the atomic communication patterns that work on an ESB are the basicskill-sets required to model efficiently business flows. In this session you shall learn basic patterns like filter pipes, synchronous and asynchronous coupling and more complexpatterns like fan-out, fan-out and merge, bucketing and campaigning while getting a feeling how an ESB can help you making application design very efficient. This is a that is targeted to build the bridge between modern application design and the idea of distributed computing in the spirit of service oriented Architecture.