SP2013 custom Claims provider

1.When ever we want to inherit the "MembershipProvider" class use  System.Web.ApplicationServices - This one for SP2013 where as in SP2010 directly we will get from system.web
2.When ever we want to inherit the "RoleProvider" class use  System.Web.ApplicationServices -This one for SP2013 where as in SP2010 directly we will get from system.web