Always have a backup plan

Article in Cooper Interactive Newsletter by designer, Gretchen Anderson about preventing failures in applications by planning for them. Make sure users can't inadvertently cause their software to fail. By the same token, we also encourage designers to "make errors impossible" by designing software that anticipates the actions of its users. Nevertheless, things will go wrong. By anticipating failures, and designing backup plans like those described below, you can minimize the impact of unexpected problems on the user.