Controller-Service architecture. What is service?
I'm developing an ASP.NET REST API and use the Controller-Service architecture (I don't have a data layer). And I have the following question: what is a service? Is it a facade object for the controller? In this case, I have two main groups of objects: Services and Controllers, each of which is in its own namespace(folder), where, in this case, should I put the rest of the classes that the service uses? In 'Model'? In 'Core'?
