I was working on a new ASP.NET web application. In this application, I was trying to use Onion Architecture. The application was also using ASP.NET Identity 2.0. Our goal was to create application that will easily replace(if required) the ASP.NET Identity system with any other Identity system or ASP.NET Identity Entity Framework store with any other Identity store without changing anything in our web application. We were able to create a web application without ASP.NET Identity and OWIN dependency using Onion architecture.