Chapter 10: Beginning the Decomposition Journey

A distributed system is one in which the failure of a computer you didn’t even know existed can render your own computer unusable.

— Leslie Lamport

So far, we have a working application for Letter of Credit (LC) application processing, which is bundled along with other components as a single package. Although we have discussed the idea of subdomains and bounded contexts, the separation between these components is logical rather than physical. Furthermore, we have primarily focused on the LC Application Processing aspect of the overall solution.

In this chapter, we will look at how to extract the LC Application Processing bounded context into a component that is physically disparate and, hence, enables us to deploy them independently of the rest of the solution. We will discuss the various options that are available to us, the rationale for choosing a given option, and the implications that we need to be cognizant...