[[File:111.png|thumb|400px]]
*'''基本概念'''
**领域(domain)领域(domain:customer,functional,physical,process)**阶层(hierarchies)阶层(hierarchies:the relationship and order of the different domains)**曲折(zigzagging)曲折(zigzagging:the way to communicate the domains)**设计公理(axiom design)design:the paradigm of the design)**如右图2[[File:112.png|400px600px]]*对上图的解释。