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By topic
Topic-based navigation is very common at level 1 and 2, where the content varies widely and it’s critical to get the user to the right section before they can start their task.
By activity or task
Grouping content by activities and tasks is common, especially on lower levels of many websitesa website. It takes advantage of the fact that most users arrive with a specific task in mind:
Note that activity groups activities (e.g. "Administering a school") often resemble audiences and roles ("School administrators"); sometimes it is just a question of labelingphrasing.
Note also that activities often mix well with topics (see above). Consistency is less important here than effectiveness.
By audience or role
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