What is an Anaemic Domain Model
What we were facing were the problems generated by an Anaemic Domain Model. An Anaemic Domain Model is a model with no logic in it. Domain classes look more like a bunch of public setters and getters without domain logic where the client of the class has control over how to instantiate and modify the class. In these models, the client has to interpret the class purpose and use. Usually, the logic has been pushed to other classes called something like services, helper or manager plus the name of the domain class. With the logic sitting in another class, there is nothing that helps the client to navigate or use the model class.

This approach leads to many design problems and disadvantages:

Encapsulation is violated
Hard to maintain
Duplicated business logic
Cannot assure the entities in the model are in a consistent state
Low cohesion
Favours gap and misunderstanding between development and business