While working on myGov I designed a system with a persistent universal header for all sites while logged in to any member service. I cannot share the actual designs publicly, and I’m not even sure how much of it I’m allowed to talk about, but I wanted to put the general suggestion out for discussion.
The benefit is that you have a standardised top level navigation across all government sites, giving users a consistent IA and making other departments more discoverable. It could include a whole of government search function, life event based menu system, and a universal logon component.
This universal header could also include both content from the accordion band and from the global header
When logged in to a whole of government authenticated system, the same universal header could then show links to linked authenticated sites from each department, a universal inbox and so on.
This idea has been kicking about for a number of years, but it needs some whole of government user experience design impetus to come to fruition. If we don’t do this, then we will all be reimplementing the same design elements over and over in different ways. It makes sense for this design to come from the organisation that owns the design of Australia.gov.au and my.gov.au, since it is basically unifying those two entities into a singular whole of government design component.