Command Recognition

The process by which a computer system interprets and classifies a user's input action — such as a gesture, voice command, or key press — as a specific intended command from a predefined vocabulary of possible commands. The accuracy of command recognition is characterised by the system's recall rate (the proportion of commands correctly classified) and can be represented by a confusion matrix showing how often each intended command is correctly or incorrectly identified. In assistive technology, command recognition accuracy is critical because misclassifications can be frustrating and time-consuming for users with disabilities who may already face elevated production costs for each input action.