An example of User Interface is when you click on a button and it takes you to the next webpage of information. An example of User experience would be if that button dinged when you clicked it.
Why is this important?
It is important because the technical end (UI) of things can be flawless, in fact must be flawless for a user to return. However, it can be flawless and yet so bland, there is no emotion from the user while moving through the site. Make no mistake. Marketing is all about evoking an emotion. If your website doesn’t do that, you might as well close the doors before you open them. If the user enjoys the experience of your site, they will return. If they do not enjoy the experience, they won’t look back while they click on the next website Google suggests.
The other side of that coin is if your website is all emotion inducing unicorn glitter without clean interface paths to follow, the user will also be inclined to move on to the next site where they can easily find the information.
What is the take away here? Both elements are equally important, the Ying and Yang of website design. However, I believe the individual web designer is going to need to be cautious, to quote Admiral Ackbar, “It’s a trap.” Or it can be because we are either right brained or left brained. We are either going to lean toward functionality, or toward creativity. The designer who can keep both elements clearly on target and find the right balance will be the most successful at his/her job.