- Better communication to project sponsors, stakeholders and team members
- More accurate estimation of tasks, timelines and costs
- Increased confidence that 100% of the work is identified and included
- A foundation for the control of processes within the project
Having a good, deliverable-oriented WBS does not eliminate the need for a Scope Management plan.
Additional articles: http://project-pro.us/2010/07/12/benefits-of-a-deliverables-based-wbs/