A context-sensitive user interface is one which can automatically choose from a multiplicity of options based on the current or previous state(s) of the program operation. Context sensitivity is almost ubiquitous in current graphical user interfaces, usually in the form of context menus. Context sensitivity, when operating correctly, should be practically transparent to the user. For example: Clicking on a text document automatically opens the document in a word processing environment. The user does not have to specify what type of program opens the file under standard conditions.