Topics:
User error vs. machine error vs. interaction design
Why the high volume of discarded stickers? What does this tell you about the users? What about the machine?
The full context:
The design of this self-service, produce-pricing machine includes an area for discarded “mistakes”; but at what point is it an indication that it’s no longer user-error?
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A few books I'm reading now:
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Crucial Conversations: Tools for Talking When Stakes are High
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Watchmen
-- graphic novel (and an upcoming movie)
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What Got You Here Won't Get You There: How Successful People Become Even More Successful
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The Unwritten Laws of Business
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The Simplicity Survival Handbook: 32 Ways To Do Less And Accomplish More
A few books I'd recommend:
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Naked Economics: Undressing the Dismal Science
by Charles Wheelan -- A fantastic overview of the field of Economics. I was pleasantly surprised by how much I enjoyed this book.
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A Short History of Nearly Everything
by Bill Bryson -- a true tale of scientific thinking throughout history. You'll be amazed by how much we still don't know.
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Freakonomics [Revised and Expanded]: A Rogue Economist Explores the Hidden Side of Everything
by Steven D. Levitt, Stephen J. Dubner -- a fun read offering a somewhat different way of looking at society. Answers questions like "Why do drug dealers still live with their moms?", and what qualities in a parent matter for the success of a child later in life?
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Getting Things Done: The Art of Stress-Free Productivity
by David Allen. I'm a bit of a GTD freak since reading this, but productivity == $$ (whether you can simply get more work done in a given time, or work less by focusing on the right tasks.)