References
Norman, D. (2007). The design of future things. New York, NY: Basic Books.Summary
In this chapter, entitledCautious Cars and Cantankerous Kitchens,Norman covers some of the nuances of the relationships that we have with machines. Using the example of interacting with a car, he points out how
...trust is sometimes conferred undeservedly - or withheld, equally undeservedly.One example of undeserved conferred trust is that of an automated cruise control system, which correctly determined that the car could accelerate due to a clear path ahead, but which incorrectly did accelerate when the driver pulled onto an exit ramp. An example of withheld trust is that of the car the will not let the driver change lanes in the absence of a turn signal: the driver could be reacting to a situation of which the car is not aware to avoid an accident, only to be prevented from actually avoiding the accident by the car's
safetyfeatures. He does admit that some safety features do a better job of driving for us than we do, in the case of traction control systems and anti-lock brake systems.
Norman also covers the idea that
two monologues do not make a dialogue.He extends this concept over the course of the rest of the chapter, citing how we do not really talk to machines, but only command them to be commanded in turn; his examples here are a navigation system and a smart microwave. Norman cites that even as navigation systems become more sophisticated and advanced and are able to suggest alternate routes based on any number of various factors, we still cannot talk to the machines about the arbitrary qualitative differences between two routes. He talks about a smart microwave that uses the only sense available to it to determine whether food is cooked - humidity - and how even this interaction can be flawed, both in the way it is carried out by the machine and the way it is perceived by us.
Norman closes by proposing a broad solution that incorporates the design of future objects: a symbiotic relationship between humans and computers. Throughout the beginning of the chapter, a recurring theme was the constant back-and-forth interaction between humans and computers, and how this is one of the last issues that we need to address before we have semi-intelligent machines with which we can interact to a reasonably usable degree. Norman states the importance of being aware of what the machine is doing, and of having the machine let us know what it is doing, in order for this interaction to be possible. He says that defining and implementing this interaction will be key to design as we go forward.
Discussion
I think I will appreciate this book from Norman more than his Design of Everyday Things, because in this he addresses design issues that we might actually see coming upon us in the relatively near future. I agree wholeheartedly with him when he talks about letting the machines do what they do best, e.g. with regards to driving, let the machine handle traction control and anti-lock braking. I also like that he still advocated letting the human take control in situations where our understanding and perception of our current situation might be better than a machine's, for whatever reason, or when we have the capability and desire to control more than what the machine lets us, i.e. let me turn off traction control or lock differentials when I choose based on my expertise of a given driving situation. I mean, I am getting pretty good at parallel parking, but I don't really have a desire to continue doing this myself, if I could have my car do it for me:
A 2008 Lexus LS600hL parallel parking itself.
Image courtesy of Autosavant
Image courtesy of Autosavant
I still think that designs like these pose very important issues, such as the issue of who is at fault in the event of an accident when a human was supposed to have been monitoring a machine-controlled process, or when a machine-controlled process reacts to a situation in a less-than-ideal manner given its inputs. I believe that the solution to this is to remember that we are the humans with the intelligence and the understanding and the common sense, with the responsibility to those whom our actions will affect, and that the machine is only a tool, to be learned and used with care and skill.

