Orchestration vs Choreography

As we start to model more and more complex logic, we have to deal with the problem of managing business processes that stretch across the boundary of individual services. And with microservices, we’ll hit this limit sooner than usual.

When it comes to actually implementing this flow, there are two styles of architecture we could follow. With orchestration, we rely on a central brain to guide and drive the process, much like the conductor in an orchestra. With choreography, we inform each part of the system of its job, and let it work out the details, like dancers all find‐ ing their way and reacting to others around them in a ballet.