（ ）把软件项目整体或者主要的可交付成果分解为易于管理、方便控制的若干个子项目；再将子项目继续分解为工作包。在每个分解单元中，都存在可交付成果和里程碑。该模型的主要用途是（ ）。
问题1选项
A.分层数据流图
B.软件模块图
C.工作分解结构WBS
D.PERT图
问题2选项
A.描述软件项目的功能需求
B.定义项目边界，有助于防止需求蔓延
C.对软件的静态结构进行建模
D.刻画软件开发活动之间的依赖关系
正确答案及解析
正确答案
解析
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