Domain-Driven Design in PHP

How to Avoid Anemic Domain Models

The way to avoid falling into an Anemic Domain Model is to, when starting a new project or feature, think of the behavior first. Databases, ORMs, and so on are just implementation details, and we should strive to push the decision to use these tools as late in the development process as we can. In doing so, we can focus on the one true attribute that matters: the behavior.

Just as is the case with Entities, Domain Services can also fire Chapter 6, Domain-Events. However, when events are mostly fired by Domain Services and not Entities, it's again an indicator that you may be creating an Anemic Domain Model.