I agree quality is striving for customer satisfaction of the product, with the added influence that quality is relative to what the customer draws from the market. For example, when digital cameras first came out they were bulky and I am sure the picture quality was nothing compared to what you can get today. Why do we need more megapixels? Because we are all wanting to print poster-size photos? No, because the market is driving the product to have more megapixels and making the customer believe they need a most number of megapixels to have the best quality camera.