WBS Dictionary: Contains detailed information about each element of the project, including definitions of each work package, effort level and duration of tasks, resources and more
Scope statement: High level elements of WBS should match, word for word, the nouns used to describe the project outcomes in the scope statement
Resource breakdown structure: Describes the project's resource organisation - Can be used in conjunction with WBS to define work package assignments.
Network diagram: A sequential arrangement of the work defined by the WBS
Project schedule: Elements of the WBS are starting points for defining the activities included in the project schedule.