Hogan, Alex (HoganA@isd.flightsafety.com)
Fri, 31 Jul 1998 11:26:44 -0400
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From: "Hogan, Alex" <HoganA@isd.flightsafety.com> Subject: RE: [ifets] audible interactive design Date: Fri, 31 Jul 1998 11:26:44 -0400
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>Help me understand your approach to this design. It sounds interesting.
>-audible interactive design
>Does this mean that the user as well as the computer performs all functions
>by voice (audible) commands?
Yes, the user and the computer interact with each other verbally.
>If this is the case, I'm wondering how the user knows which commands the
>computer can understand. Either the computer needs to have a vast
vocabulary
>of all the possible commands that the user may come up with,
>or the user must restrict her verbal interactions to a
>recognizable list- and therefore must always have this list in front of
>her. (unless you expect the user to continually guess/ use trial and error
>to communicate with the computer. It could be very frustrating)
I am trying two approaches, one is to have onscreen prompts that lead the
user through the subject matter in the same fashion that traditional menu
structures would, and the other is to have prompts only on request of the
user. This involves, as you stated, instilling the computer with a
vocabulary of possible commands. However the vocabulary doesn't have to be
all that vast. By identifying what the logical sequence of the command
structures for given tasks the list becomes narrowed. Add that with an
online help that identifies when the user is struggling, similar to ones in
the Microsoft Office package, and you have a working design prototype.
I'm not saying that the users won't have to be retrained, they will to an
extent. Remember when OS changes happened the users were given greater
functionality with a price, that price being retraining.
Alex Hogan
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Engineering & Design
Instructional Systems Division
FlightSafety International
hogana@isd.flightsafety.com
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