A door may afford pulling or pushing, depending on which way it opens. When a person can see in advance whether to pull or push the door to open it, that’s a good user interface.
Jakob Nielsen
A former Sun Microsystems Engineer and "The world's leading expert on Web usability" (www.useit.com).
One of the eternal conundrums of interaction and interface design is how to address the needs of both beginning users and expert users with a single, coherent interface.
Alan Cooper
An American software designer and programmer. Widely recognized as the “Father of Visual Basic".
Design Thinking
IxD
UI Design
Everything has to be validated. If something can’t be explained, it gets the boot. This may be the only unbreakable rule in my office.
Theo Rosendorf
A graphic designers and author of the book "The Typographic Desk Reference".
Design Thinking
UX Design
Design is really an act of communication, which means having a deep understanding of the person with whom the designer is communicating.
Donald A. Norman
An American researcher, professor, and author (The Design of Everyday Things). As Apple’s User Experience Architect (90's), he became the first person to have UX in his job title.
Communication
Design Thinking
I start with the laugh and work backwards from there.
Bill Bailey
English actor, comedian, musician and singer. Known for creative ways of incorporating music into his comedy.