4.2.6.3-22 Speech Presentation of Alarm Information

Using speech alone for presenting alarm information is not recommended.

Additional Information:
Speech is an acceptable medium for presenting interface-related information (see Section 1.2.12, Speech Displays), and there may be advantages associated with using speech for presenting alarm information as well. However, its appropriateness has been questioned for tasks where there is a memory component, there is likely to be some delay before the fault is attended to, there is likely to be more than one alarm presented at a time, and the operator is required to assimilate information from a variety of sources using spatial reference. Therefore, it has not yet been shown that it is an appropriate method for presenting alarm information in process control contexts. Speech should only be used in conjunction with other methods of presenting alarm information.