McKinsey have published an article on design led thinking which can be found here . In their article they describe what is design - thus:
What is design? Like “strategy” and “analytics,” “design” is a term that suffers from misuse. Design is not just about making objects pretty. Design is the process of understanding customer needs and then creating a product or service—physical, digital, or both—that addresses their unmet needs. It sounds simple, but it’s actually a high bar: the design must simultaneously achieve functional utility, emotional connection, and ease of use, while fitting into customers’ broader experience.
There is currently a lot of press coverage about the design issues with Intel chips which are claimed can lead to malware exploitation. There is a very good article in The Register, entitled Kernel-memory-leaking Intel processor design flaw forces Linux, Windows redesign which can be found here, which gives a clear description of the problems and issues arising from them. It is highly recommended reading