Is good design one of the greatest factors of high-performance technological products?
Absolutely, of course. Poor designs will include a lack of foresight in terms of the end user, performance, material considerations, loading, ergonomics, packaging, cost, quality, aesthetics, and any number of other things.
Design is merely the process of expressing the ideas of an engineer in such a way that a workable product can be made. If the engineer expresses this well, and he considers all aspects of the problem, a good product will result.
What an odd question - is this homework?
Separate names with a comma.