George Heilmeier was the inventor of the LCD screen display which we use today in telephones, digital watches, computer monitors and flat-screen televisions. Heilmeierput together this list of questions for designers:

What are you trying to do? Articulate your objectives using no jargon. 

How is it done today, and what are the limits of current practice?

What is new in your approach and why do you think it will be successful?

Who cares? If you are successful, what difference will it make?

What are the risks?

How much will it cost?

How long will it take?

What are the mid-term and final “exams” to check for success?