Changes

However, the primary and essential means of recoverability remains the ability to undo one's actions.  Of course, the notion of undo/redo becomes complicated in the realm of collaborative editing, which imposes a limitation on the extent to which undos are possible, since collisions could often occur between the things one child wants to undo and the things another child has already changed since those were done.  Nonetheless, we are dedicated to providing this functionality to every extent possible, and [[Design Team/Human Interface Guidelines/Activities|activities]] should strive to support this to the best of our ability.

However, the primary and essential means of recoverability remains the ability to undo one's actions.  Of course, the notion of undo/redo becomes complicated in the realm of collaborative editing, which imposes a limitation on the extent to which undos are possible, since collisions could often occur between the things one child wants to undo and the things another child has already changed since those were done.  Nonetheless, we are dedicated to providing this functionality to every extent possible, and [[Design Team/Human Interface Guidelines/Activities|activities]] should strive to support this to the best of our ability.

(Future revisions of the [[DesignTeam/Human Interface Guidelines/The Sugar Interface/Input Systems#Keyboard|keyboard]] may even have an undo/redo key to further strengthen this idea.)

(Future revisions of the [[Design Team/Human Interface Guidelines/The Sugar Interface/Input Systems#Keyboard|keyboard]] may even have an undo/redo key to further strengthen this idea.)

====Interoperability====

====Interoperability====