Arranging communication #
As a project grows, it tends to become subdivided into services, modules, or whatever you call the components that match its subdomains (or bounded contexts, if you prefer the [DDD] convention). Still, there remain system-wide use cases that require collaboration from many or all of the system’s parts – otherwise the components don’t make a single system. Let’s see how they can be integrated.
As integration is not unique to distributed systems – it is present even in smaller programs that need to make data, functions, and classes work together – we’ll take a look at programming and architectural paradigms next.