The HSI should allow the user to interrupt or terminate a current transaction sequence.
Additional Information:
A transaction sequence is a series of steps undertaken to accomplish a larger task. For example, the task of changing a control setpoint may involve multiple steps for selecting the variable and entering the new value. If different types of interruptions or terminations exist, then each should have a separate control option and a distinct name. Table 7.1 lists interruption and termination types.
Table 7.1 Different types of interruptions or terminations for transaction sequences.