Iam starting to implement it but i encounter first problem trying to use Caliburn.Mirco as IoC for all application. I create Domain layer with his bootstrapper but don't find a way to start it when running test

So i can use facade pattern in business layer to expose in a single class all repository method and domain object method that i need in viewModel (taht resides in the ui project)

yes, my idea is to use caliburn.micro but don't know it yet. so viewModels is not your business layer?

It's my domain logic that say that my activity must have an ID, so my domain object enforce it

:) Now iam studing the idea of put all interface into domain. Other question, ui speak direclty to DAL and domain or this is make by PL?

How you structure domain and data access layer?

Found this: stackoverflow.com/questions/15980963/… it's speak of putting all interfaces in domain (core) but i don't understand everything

My problem is how to put alla toogheter, i have no find two mvvm project with equals architecture from UI to Domain. if i undertand well mvvm concerns only ui and some business logic, but not data access and common services

Yes, i need a project for the dependecy injection resolution, good suggestion

2 and 3 - Accordind to Onion and orthogonal architecture interface and implementation reside in different layer, so iam asking where put the interfaces of Common project and Business project classes. Putting DI in Common didn't i need to add referenece to every interface and impl of my solution?