I'm working on a (web) design that implements both an identity (user) context, and an organization context -- similar in the way that GitHub allows you to log in as yourself, then be a member of one or more organization and switch between them.
The site design as it currently exists today has a side navigation, and a top context bar, with the identity control residing at the bottom of the nav bar:
[ logo bread > crumb ] [ nav ] [ nav ] [ nav ] [ usr ] [ org ]
This obviously deviates from some of the more conventional placements of such a control -- most big players place it top-right, while some do top-middle or top-left.
My question is twofold:
- Is there a behavioral or psychological benefit to placing the identity control in the top-right?
- Is there a usability downside (or upside) to placing the control in the bottom-left or top-right?