Domain Modeling Made Functional

Creating a Solution Using Bounded Contexts

Understanding the problem doesn’t mean that building a solution is easy. The solution can’t possibly represent all the information in the original domain, nor would we want it to. We should only capture the information that is relevant to solving a particular problem. Everything else is irrelevant.

We therefore need to create a distinction between a “problem space” and a “solution space,” and they must be treated as two different things. To build the solution we will create a model of the problem domain, extracting only the aspects of the domain that are relevant and then re-creating them in our solution space as shown in the figure.

In the solution space, you can see that the domains and subdomains ...