The best way to understand Work Breakdown Structure is to look at some examples of Work Breakdown Structure and start drawing your own. You can now modify the Work Breakdown Structure example below using Visual Paradigm's online Work Breakdown Structure tool.
The Resource Breakdown Structure (RBS) for a project should be considered similar to a Work Breakdown Structure, but the RBS focuses on the resources needed to deliver the project.
You can easily create Resource Breakdown Structure using a quality Resource Breakdown Structure software like VP Online Diagrams: