Link by relevance
A cross-portfolio link should help the reader complete a related decision.
Preserve topic ownership
Operating brands should remain focused on their markets.
Use descriptive anchors
Link text should explain the destination.
Avoid network-wide repetition
Sitewide links should be reserved for essential relationships.
Measure useful navigation
Review completion and discovery, not only clicks.
Methodology and limitations
This framework should be adapted to industry, regulation, consequence, and company stage.