User experience design, or UXD, considers each and every element that shapes the user experience. It’s all about designing specifically for the needs of the user or customer, looking at things like ease of use, quality, and efficiency.

If you think about it, humans can only benefit from complex systems like websites and computer programs (or any product, really) if these systems are somewhat user-friendly. UX designers look to bridge the gap between the product and the human user. They think about how people interact with a given product, and look for ways to make these interactions as intuitive and straightforward as possible.