Lecture Topics in HCI, by Saul Greenberg
Back to: Psychology of everyday things

Usability War Stories


These stories have been collected from various places. I make no claims on their truth!

The PC Cup Holder: A True Story from a Novell NetWire SysOp

This story from: g.wagner@sylvania.sev.org (George Wagner)

Caller: "Hello, is this Tech Support?"

Tech Rep: "Yes, it is. How may I help you?"

Caller: "The cup holder on my PC is broken and I am within my warranty period. How do I go about getting that fixed?"

Tech Rep: "I'm sorry, but did you say a cup holder?"

Caller: "Yes, it's attached to the front of my computer."

Tech Rep: "Please excuse me if I seem a bit stumped, it's because I am. Did you receive this as part of a promotional, at a trade show? How did you get this cup holder? Does it have any trademark on it?"

Caller: "It came with my computer, I don't know anything about a promotional. It just has '4X' on it."

At this point the Tech Rep had to mute the caller, because he couldn't stand it. The caller had been using the load drawer of the CD-ROM drive as a cup holder, and snapped it off the drive.

Computer Interface Contributes to Plane Crash

This story from New York Times 24 Aug 96 p7.

The crash of a Cali-bound American Airlines jet last December in Colombia, S.A., occurred because the plane's captain entered an incomplete command into the onboard computer -- and the default action taken by the software pointed the plane in the wrong direction. The beacons at the Cali and Bogota airports both begin with the letter R, which is the only character the pilot typed; instead of proceeding toward Cali, the plane turned in the opposite direction (toward Bogata) and crashed into a mountain.


More Help Desk Support Stories

Are these true? There too good not to be!

Compaq is considering changing the command "Press Any Key" to "Press Return Key" because of the flood of calls asking where the "Any" key is.

AST technical support had a caller complaining that her mouse was hard to control with the dust cover on. The cover turned out to be the plastic bag the mouse was packaged in.

Another Compaq technician received a call from a man complaining that the system wouldn't read word processing files from his old diskettes. After trouble-shooting for magnets and heat failed to diagnose the problem, it was found that the customer labelled the diskettes then rolled them into the typewriter to type the labels.

Another AST customer was asked to send a copy of her defective diskettes. A few days later a letter arrived from the customer along with Xeroxed copies of the floppies.

A Dell technician advised his customer to put his troubled floppy back in the drive and close the door. The customer asked the tech to hold on, and was heard putting the phone down, getting up and crossing  the room to close the door to his room.

Another Dell customer called to say he couldn't get his computer to fax anything. After 40 minutes of trouble-shooting, the technician discovered the man was trying to fax a piece of paper by holding it in front of the monitor screen and hitting the "send" key.

Yet another Dell customer called to complain that his keyboard no longer worked. He had cleaned it by filling up his tub with soap and  water and soaking the keyboard for a day, then removing all the keys and washing them indivilually.

A Dell technician received a call from a customer who was enraged because his computer had told him he was "bad and an invalid".  The tech explained that the computer's "bad command" and "invalid" responses shouldn't be taken personally.

An exasperated caller to Dell Computer Tech Support couldn't get her new Dell Computer to turn on. After ensuring the computer was plugged in, the technician asked her what happened when she pushed the power button. Her response, "I pushed and pushed on this foot pedal and nothing happens." The "foot pedal" turned out to be the computer's  mouse.

Another customer called Compaq tech support to say her brand-new computer wouldn't work.  She said she unpacked the unit, plugged it in, and sat there for 20 minutes waiting for something to happen.   When asked what happened when she pressed the power switch, she asked "What power switch?"


How Specs and Standards Live Forever

We think this is true...

The US Standard railroad gauge (distance between the rails) is 4 feet, 8.5 inches. That's an exceedingly odd number. Why was that gauge used? Because that's the way they built them in England, and the US railroads were built by English expatriates. Why did the English people build them like that? Because the first rail lines were built by the same people who built the pre-railroad tramways, and that's the gauge they used.

Why did "they" use that gauge then? Because the people who built the tramways used the same jigs and tools that they used for building wagons, which used that wheel spacing. Okay! Why did the wagons use that odd wheel spacing? Well, if they tried to use any other spacing the wagons would break on some of the old, long distance roads, because that's the spacing of the old wheel ruts.

So who built these old rutted roads? The first long distance roads in Europe were built by Imperial Rome for the benefit of their legions. The roads have been used ever since. And the ruts? The initial ruts, which everyone else had to match for fear of destroying their wagons, were first made by Roman war chariots. Since the chariots were made for or by Imperial Rome they were all alike in the matter of wheel spacing.

Thus, we have the answer to the original questions. The United State standard railroad gauge of 4 feet, 8.5 inches derives from the original specification for an Imperial Roman army war chariot. Specs and Bureaucracies live forever. So, the next time you are handed a specification and wonder what horse's ass came up with it, you may be exactly right. Because the Imperial Roman chariots were made to be just wide enough to accommodate the back-ends of two war horses.


Last updated April 1997, by Saul Greenberg