Application of nhib.pdf data persistence framework in multi-layer project development (I)

I just learned it. Let's take a look at the introduction of 3yee.
Http://nhibernate.3yee.com/archive/2004/04/22/394.aspx

Nhib.pdf is an open source based. NET data persistence framework, suitable for rapid development of information system applications, is conducive to multi-layer structure system development, the framework design of a project is generally divided into three projects (taking the search project as an example, it can be divided into the following three projects, which can be placed in the same solution ):

Search. Data data layer
Search. core business logic layer (you can also use COM + parts as the business logic layer)
Search. WEB presentation layer (of course, it can also be a winform richclient Application)ProgramSuch as search. Client)

The project structure is organized as follows: