Implementing Domain-Driven Design

Module before Bounded Context

We have to give careful consideration to the perceived need to divide cohesive domain model objects into separate models, or to keep them together. Sometimes the linguistics of the true, actual domain will jump out at you, and sometimes the terminology will be fuzzy. In cases where terminology is fuzzy and it is not clear if contextual boundaries should be created, first consider the possibility of keeping them together. This approach will use the thinner boundary of Module to separate, rather than the thicker one of Bounded Context.

This does not mean that we rarely use multiple Bounded Contexts. Boundaries between models are clearly justified, as the linguistics demand. You should take away that Bounded Contexts ...