Serious accidents are frequently blamed on "human error." Yet careful analysis of such situations shows that the design or installation of the equipm… - Donald Norman

Good design is also an act of communication between the designer and the user, except that all the communication has to come about by the appearance of the device itself. The device must explain itself.

As the technology matures, it becomes less and less relevant. The technology is taken for granted. Now, new customers enter the marketplace, customers who are not captivated by technology, but who instead want reliability, convenience, no fuss or bother, and low cost.

In their work, designers often become expert with the device they are designing. Users are often expert at the task they are trying to perform with the device. [...] Professional designers are usually aware of the pitfalls. But most design is not done by professional designers, it is done by engineers, programmers, and managers.