VSTS 2010架构功能组成，主要功能分为三部分：1）理解现有代码；2）明确结构设计；3）团队合作。
1. UML Diagram.
2. Architecture Explorer: This is a new and innovative tool to look at existing architectures. It enables to look at existing systems on a higher level of abstraction. The tool allows to import existing implementations and provides many filters so the view can be changed depending on the needs of the architect. I think this is huge and a great step forward in the way we look at systems not just in new development but also in the maintenance phase. It allows to easily view dependencies between objects and namespaces in a graphical way.
3. Layer Diagram. This type of diagram enables to define the high level architectural layers of the system such as Application, Business, Data Access layer in a very simple and intuitive graphical representation AND allows to check these constraints automatically during implementation phase, way cool…..
More reading: Better coding from MSDN