软件架构 - 什么是架构？

Architecture is the fundamental organization of a system embodied in its components, their relationships to each other, and to the environment, and the principles guiding its design and evolution.

IEEE-1471 definiting architecture

http://www.iso-architecture.org/ieee-1471/defining-architecture.html

IBM DeveloperWorks What is a software architecture ?

https://www.ibm.com/developerworks/rational/library/feb06/eeles/