（ ）is the hierarchical breakdown of the entire scope of work by the project team to accomplish the project objectives and create the required deliverables， provides detailed deliverable，activity， and scheduling information about each component in the work breakdown structure.
OLA
SLA
SOP
WBS
（WBS）是项目团队为完成项目目标和创建所需的可交付成果而对整个工作范围进行分层细分，它提供了有关工作分解结构中每个组件的详细可交付成果、活动和调度信息。
A. OLA
B. SLA
C. SOP
D. WBS
故此题正确答案为D。