Machines dominate our lives, from alarm clocks that wake us up in the morning to radios that lull us to sleep. Most of our interactions with automated machines and computers are problem-free, but more often than we would like, they can be irritating and confusing. This is frequently harmless, such as a VCR recording the wrong show, but when it involves a critical system like an autopilot or medical device it can be a matter of life or death. Taming HAL seeks to explain these miscommunications between humans and machines by exploring user interfaces. Degani examines twenty-five different systems for human use, including watches, Internet applications, automobiles, medical equipment, and autopilots onboard commercial airplanes. Readers will discover why interfaces between people and machines all too often do not work and what needs to be done to avoid potential tragedies.

This book is an exploration of interaction between humans, computers and automated machines and why they frequently go awry, sometimes with disastrous consequences. The book lays out a clear foundation for evaluating interactions between users and machines, showing the reader how to describe, analyze and quickly identify potential design problems. The insights and methodologies provided allow the reader to understand the root human-interaction problems in modern systems, improve the usability of new user interfaces, and, the author hopes, have a say in the design of the highly automated systems of the future.