A number of times I have been called on to help "novice" computer users with problems on their PCs. When I ask them to right click on something, they invariable had never used the right mouse button. From then on, every time I ask them to click on something, they ask "right or left button?" There is a lot to be said for simplicity. Apple did a lot of user testing to determine a one-button mouse is less confusing, but as Richard points out, computer novices are becoming more and more extinct...

At 07:17 PM 8/2/2005, you wrote:
Judy Perry wrote:
Whew!  I'm feeling better already.
I'm in agreement with Raskin on the uni-button mouse being preferrable for
error-reduction.

Three factors come into play, with error-reduction being one of them. The other is productivity, and a third being learnability.

I have no doubt Raskin got it right with error-reduction, and of course a single-button mouse will score higher on learnability by virtue of having less to learn.

But the question manufacturers face in the 21st century is:

  "Does our audience today have enough experience with
   mice to use a multi-button mouse more productively
   than a single-button mouse?"

Apple seems to have answered that question well.

The single-button mouse was revolutionary for adoption of modern GUIs -- thank you Mr. Engelbart.

But the majority of today's computer purchasers have previous experience with computing, are quite comfortable with mice, and can take advantage of the productivity gains of multi-button mice with far less trouble than yesterday's newbies.

--
 Richard Gaskin
 Fourth World Media Corporation
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