This template uses the tabular format to organize deliverables into different levels. It also includes room to add notes for each deliverable. A downside is that there is no clear visual hierarchy between deliverables at different levels.
Download: Vertex24.com (Excel)
This template uses the familiar flowchart format for defining deliverables at different levels. You can add your deliverables in the spreadsheet and Excel will automatically sort them into a flowchart. Great for visually defining hierarchies.
Download: DemandMetric.com (Excel) - Requires registration
Download: MyWordTemplates.org (Word)
Source : https://www.workamajig.com/blog/project-management-templates