It’s not just what it looks like and feels like. Design is how it works. (uxdesign.smashingmagazine.com)

I disagree, engineering is how it works, design is about interaction between the user and tech-object. People nowadays tend to put too much emphasis on design vs. engineering, without design you have a bad working tech-object, without engineering you have no tech-object at all.

Don't think that I regard design as non important, I think both have their place in inventing and manufacturing.