How do you define 'good design?'

I have been asked this question during many interviews throughout my career.
Each time I feel, my answer to this question will make/break my chances of getting that job.

I never had a straight forward answer because I believe there is none. There is no all encompassing definition of good design. It has so many different perspectives to it.

Inherently, I knew the principles, but I could never do an elevator pitch on this.
Thanks to a colleague, I came across this documentation of 'Good Design' principles by Dieter Rams.

• Good design is innovative
• Good design makes a product useful
• Good design is aesthetic
• Good design makes a product understandable
• Good design is unobtrusive
• Good design is honest
• Good design is long lasting
• Good design is thorough, down to the last detail
• Good design is environment friendly
• Good design is as little design as possible

I whole-heartedly agree to these principles. My favourite two are:

• Good design is as little design as possible
• Good design is Honest

I now have an excellent reference point to answer this very cliche' question in future interviews :)