One of the first things I look for in a Design whether it is in software or hardware is if I can think of a way to make it simpler. Another thing I learned was if you ask the Manufacturing guys what they think of your design you will likely get a lot of suggestions for making it easier and less expensive to manufacture while still keeping the original functionality.
Long ago I owned an older Mercedes and had occassion to replace the turn signal switch. I had a chance to compare the German design with an American one. Although the designs were pretty similar for the most part, the German switch was definitely more elaborate and obviously designed to last longer. It also cost double that of the American car part.
Collaboration can usually be counted on to improve the overall Design, Cost of Manufacture and Service Life. One might think the Design is complete, but that will most likely persist only until the first and hopefully early Design Review.
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