As noted above, the conceptual stage of the development lifecycle secedes to the analysis of the customer needs, which evolve into product requirements. 如上所述,开发周期的概念阶段被分离到用户需求分析过程中,这就形成了产品需求。
An entity that secedes must be viable, either by joining another country, or making a legitimate go of independence. 一个实体分裂出去的,必须是可行的,无论是通过加入另一个国家,或作出一个合法的去独立。