本书让最优秀的设计师和架构师来描述他们选择的软件架构，剥开架构的各层，展示他们如何让软件做到实现功能、可靠、易用、高效率、可维护、可移植和优雅。(This book lets the best designers and architects describe the software architecture they choose, peel off the layers of the architecture, and show how they can make the software functional, reliable, easy to use, efficient, maintainable, portable and elegant.)