Agile information system is the one of re constructivity and fast adaptability.
敏捷信息系统是具有可重构能力的快速适应性系统。
From the Angle of mathematical methodology, by analyzing some typical examples, the forth application are set on constructivity method of mathematics.
从数学方法的角度，通过若干实例的分析，阐明了“数学构造性方法”的具体应用。
The stractures of power groups are discussed systematically by introducing generalized kernel and the constructivity theorem on a class of power group is established.
