Let’s say you’re a designer tasked with sending a fire-producing device back in time, for use by prehistoric man. You’ve studies the following contemporary devices used to produce fire:
What design elements of these items will help bridge the Gulf of Execution?
What design elements of these items will help bridge the Gulf of Evaluation?
The caveman has just stumbled upon your cache of futuristic-looking items; considering Don’s 7-Stages of Action and 3-Stages of Processing…
…Do you expect a problematic ‘bottleneck’ or ‘gulf’ arising at a particular stage?
Finally, which one would you prefer using? If there is a reasonable expectation that someone will be around who is knowledgeable about the device, does that change anything from a design perspective? If something is incredibly easy to use, but only after explicit instruction, is it still a bad design?