I didn't read this post as relating to OOP, more to have with defining specific terms and modelling the domain as it relates to business needs. In the example g

I didn't read this post as relating to OOP, more to have with defining specific terms and modelling the domain as it relates to business needs. In the example given, the business didn't recognize that they are dealing with donkeys. In a real project you could have eg invitation vs user account. Is the invitation its own model associated with a future user account or just a placeholder user account. Things change when you have other admin accounts that have to assign those users to other entities before the user is signed up in the system for example. (maybe it's a contrived example, couldn't thing of something better)