實用軟件：利用Graphviz 畫結構圖

Graphviz windows的下載地址:
http://www.graphviz.org/pub/graphviz/stable/windows/graphviz-2.26.3.msi

參考教程：

http://www.cnblogs.com/sld666666/archive/2010/06/25/1765510.html

http://abruzzi.javaeye.com/blog/429042

英文官網

http://www.graphviz.org/