Some organisations provide rules, procedures, and frameworks for preparing a WBS.  These are known as ...

This WBS development strategy identifies all of the individual work packages that will be needed, and then aggregates these into the Workstreams that will be required to successfully provide the deliverables.

In this approach, solutions from similar projects that were conducted previously, are used to provide a starting point for determining the framework that will be used in the WBS for a new project.

This approach starts by defining the deliverables-focussed Workstreams for the project, and then breaks these down into subordinate elements and work packages, which will be needed to achieve the Workstream.

This particular method is used to link tasks, so that they can be aggregated effectively, by showing the relationships within a non-linear, branching format, so these associations can be built into the WBS.