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"Can you read back the last three or four lines on the screen, please?"



Ori has it exactly right. Your mental model in seeing a CLI is that there are a series of commands being executed, that each one produces output, and that one adjusts what commands one executes in response to the output to achieve a goal.

Your user's mental model is that they are looking at a black and white screen written in ancient Aramaic. They can't read it, they won't try to read it, and they cannot keep it in their working set while speaking with you or while engaged in other tasks such as, most relevantly, typing. They hope the demon on the phone will tell them the right magic spell, because this is so frustrating.

But irrespective of their inability to read ancient Aramaic, they can still identify color, location, and motion. So the clever demon will always phrase his requests to read ancient Aramaic in terms of color, location, and motion.


You guys rock, thanks a lot.




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