A10.02
Mode errors
Cards in this group · 9
- A10.02.1A mode is a state where the same action produces different outcomes
- A10.02.2Mode errors come from a mismatch between the user's and the system's judgment of the current mode
- A10.02.3The mode indicator belongs at the point of visual focus, not a status bar or corner
- A10.02.4A quasimode is sustained by continuous physical actuation and exits on release
- A10.02.5Modeless design assigns meaning through different actions instead of relying on state
- A10.02.6A mode can auto-revert after an idle timeout
- A10.02.7How explicit a mode switch needs to be should match its consequences
- A10.02.8Common sources of hidden modes — Caps Lock, IME state, edit vs. browse mode
- A10.02.9The consequences of a mode error must be recoverable