n-tier waf 41 project 层真够多

 

ps: http://waf.codeplex.com/releases/view/618696

 

Architecture

This page might help you to understand what MEF does in the sample applications.
帮助理解 MEF
MEF(Managed Extensibility Framework)是一个用于创建可扩展的轻型应用程序的库。