Passing business entities through layers in multi layer architecture
问题 Currently I'm working on a project exploiting multi layer architecture as described in Application Architecture Guide 2.0 with 5 layers(DAL, BLL, Facade, Presentation Layer and Common Layer). Here we have a Business Logic Layer which consists of Business Components and Business Entities(which are entities generated using an O/R Mapper), regularly we need this entities in our presentation layer for binding and presenting data to the user so we bubble this entities up to the Presentation Layer