Dave

DaveOver the last several years, I have become fascinated with psychology and the workings of the human mind. Since my profession is in the field of computing, I tend to think a lot about how humans interact with computer systems. This table comes from a book on that subject. I laugh when I read it because it does such a great job of pointing out our strengths and shortcomings, but it is useful as a guide when one is deciding which tool (a human brain or a computer system) is best equipped to handle a task.

Table 2.2: Relative capabilities of humans and machines.

From Designing the User Interface by Ben Shneiderman (Addison-Wesley, 1992).

Humans Generally Better Machines Generally Better
Sense low level stimuli Sense stimuli outside human’s range
Detect stimuli in noisy background Count or measure physical quantities
Recognize constant patterns in varying situations Store quantities of coded information accurately
Sense unusual and unexpected events Monitor prespecified events, especially infrequent
Make rapid and consistent responses to input signals
Remember principles and strategies Recall quantities of detailed information accurately
Retrieve pertinent details without a priori connection Process quantitative data in prespecified ways
Draw on experience and adapt decisions to a situation
Select alternatives if original approach fails
Reason inductively: generalize from observations Reason deductively: infer from a general principle
Act in unanticipated emergencies and novel situations Perform repetitive preprogrammed actions reliably
Exert great, highly controlled physical force
Apply principles to solve varied problems
Make subjective evaluations
Develop new solutions
Perform several activities simultaneously
Concentrate on important tasks when overload occurs Maintain operations under heavy information load
Adapt physical response to changes in situation Maintain performance over extended periods of time