just enough architecture - domain model

src: Just Enough Software Architecture: A Risk-Driven Approach by George H. Fairbanks | Goodreads

Avoiding analysis paralysis

To avoid analysis paralysis, you must limit how much domain modeling you will do. One technique is to decide what questions you want the model to answer before you build the model. That way, once the model can answer the questions, you can stop modeling. Another technique to avoid analysis paralysis is to decide how deep and how broad your domain model will be.