HFES-200, Part 5 – Voice I/O and Telephony (continued)

• Provides high level guidance for the design of IVR user interfaces in general (not key assignments, exact values for time-outs, precise wording of prompts).

• Value lies in advising developers of the issues they should consider, not precisely what their resolution will be.

• Contains a small amount of guidance on voice-enabled IVR systems.