Automatically create account for employee using membership MVC3

Hello everybody ! Fisrtlly ,using MVC3 in a Humain Ressource Management project (SQL Server 2008 r2, Entity framwork) . I have a table named "Employee" in my database that content Employee information, my problem is how to create account for everey employee automatically after adding. So ,how to connect my table "Employee" to the "aspnet_users" table in the memebership provider !!! and the relation betwwen tables (one to one or one to many ???)