The foundation of user experience is the difference between the people on the design team and the people using the product. You can't ask users to design, but you also can't ask the designers whether their own design will be easy for the target audience to use.
concept of card sorting... UX. The popular, low-tech research technique is used to organize data sets. It’s especially useful for information architecture, menu structures, workflows and website navigation. While it’s easy enough to run a card sort, there’s a massive difference between a flop and a success.
User research is the methodic study of target users—including their needs and pain points—so designers have the sharpest possible insights to work with to make the best designs. User researchers use various methods to expose problems and design opportunities, and find crucial information to use in their design process.