I've moved on, grown and learned in the years since then, and am designing interfaces that make the Mac's GUI feel as clumsy to use as the Mac made t… - Jef Raskin

Норман (1983) указывает три метода предотвращения модальных (т. е. связанных с режимами) ошибок:
1. Не использовать режимы.
2. Обеспечить четкое различие между режимами.
3. Не использовать одинаковые команды в разных режимах, чтобы команда, примененная не в том режиме, не могла привести к неприятностям.

Jobs regularly misses appointments. This is so well-known as to be almost a running joke. It's not funny, hurts Apple's image when he does it to outsiders, and wastes our time and energy when it is done to another employee.

After he took over, Jobs came up with the story about the Mac project being a "pirate operation." We weren't trying to keep the project away from Apple, as he later said; we had very good ties with the rest of Apple. We were trying to keep the project away from Jobs' meddling. For the first two years, Jobs wanted to kill the project because he didn't understand what it was really all about.