Planning and executing an integrated program > Defining a program work breakdown structure > Planning the WBS
Manage the WBS
Different programs have different levels of complexity. Complex programs require a WBS to manage the deliverables and schedule, while simpler programs may not require a WBS. During the creation of the plan, you can specify whether the plan is supposed to be managed through a WBS. If you do this, the Manage WBS property is set on the plan, program, project, and sub projects, allowing the creation of the WBS root element (the top element of the WBS structure) as well as the plan object. The system associates the WBS root element with the plan object and the two objects have the same name.
You can set properties on the plan and WBS root such that they behave differently.
Set the following properties on the WBS root:
WBS Number Required : Makes the WBS number on the WBS structure optional or required.
Caution: Once set, this property cannot be changed.
WBS Number Separator : Specifies the separator for the WBS number, for example, 1.1.1 or 1-1-1 or 1,1,1.
If not specified, the default is a . (period).
Set the following property on the plan:
Milestone Breakdown Scheme : Specifies whether to break down the milestones under the plan by Events only or by Event, Accomplishment, Criteria.
When set to Event, Accomplishment, Criteria, the plan consists of a hierarchy of events supported by accomplishments associated with specific criteria to be satisfied for the event's completion.
Source: https://docs.sw.siemens.com/documentation/external/PL20251212545240207/en-US/tc_help/ippe/ftm1737238868213/fwd1737238868310/qar1737238870361/xid1927061.html · retrieved 2026-07-10