I saw DDD a few days ago. Recently, Leader asked for E-R Model when I was doing a project. I didn't know the specific relationship and difference between Domain Model and E-R Model.
Er model is concerned that the object's entity and relationship is a way of Data Modeling. When modeling, Entity's behavior is not considered, on the basis of the ER concept model, I can establish the RELATIONAL DATA Modi and Physical Data Model, I am not confirmed. Is Er Model Driven is a design process for data drivers.
Domain Model Driven is also the process of analyzing abstract entities and establishing an entity, while needing to model entities (subject behavior) to establish a model of domain layers with object-oriented manners.
I am a bit confusing, whether e-r model Driven and Domain Model Driven are conflict, or soft together, such as building Conceptual E-R Model, then establishing the RELATIONAL DATA MODEL and DOMAIN MODEL, respectively, respectively. But following the analysis process of DDD, I really can't see the necessary E-R Model, can you say that you can use Domain Driven Design not need E-R Model? (At least before building Domain Model)?
