On the other hand, it can be annoying to be asked if one really wants to delete a file when one intentionally is making a file deletion. Modelessness A mode is a program state that specifies a set of program actions that correspond to user actions. A given user action should always correspond to the same program action. In particular, a program with multiple modes will limit the set of actions that the user may perform at a given time. It has a text insert mode and a command mode.
Modality is typically the result of constraints on the expressiveness of the user interface.
Thus, the keys for the letters h, j, k, and l are used in place of the arrow keys while in command mode.