Changes

[[Image:toolbars.png]]

[[Image:toolbars.png]]

Every activity will have a "Toolbox" at the top edge of the screen.  The Toolbox consists of a set of (at least one) toolbars, individually selectable via the tabs beneath them.  Placement of the tabs beneath the toolbars themselves makes selection of tools and buttons within the toolbars easier according to Fitt's Law, since they will remain against the screen edges where they are "un-missable."  Though this makes the tabs slightly more difficult to activate, we anticipate the frequency with which these toolbars require explicit switching to be minimal, specifically due to their contextual nature as described below.

Every activity will have a "Toolbox" at the top edge of the screen.  The Toolbox consists of a set of (at least one) toolbars, individually selectable via the tabs beneath them.  Placement of the tabs beneath the toolbars themselves makes selection of tools and buttons within the toolbars easier according to Fitts' Law, since they will remain against the screen edges where they are "un-missable."  Though this makes the tabs slightly more difficult to activate, we anticipate the frequency with which these toolbars require explicit switching to be minimal, specifically due to their contextual nature as described below.

====Grouping by Context====

====Grouping by Context====