"the "currentUser" model will emit an event to notify your application that it has changed" That sounds like more than just wrapping knowledge to me. Also, wh

"the "currentUser" model will emit an event to notify your application that it has changed" That sounds like more than just wrapping knowledge to me. Also, why do you absolutely want to fit everything into a framework? Or a pattern? Business logic goes into your domain models. Don't mix your business logic with your framework, that's about it...