With an interface...

Allow easy error recovery

Once an error has occurred, it is critical that the user be able to quickly and easily recover from it, able to return to their task. If that is not possible, the user must at least understand why the error happened and what to do next.

• Notify the user when an error has occurred

• Use a common, understandable language with as little technical prose as possible when describing the error

• Ideally, the solution to the error and how to avoid the error can also be presented, though space constraints may prevent the inclusion of such information

• If a user has to acknowledge an error (as is typical with severe errors), ensure the user is aware of what will happen next

• Whenever possible, allow the user to undo the action that caused the error

dave@mobileixd.com

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