Articles like this one give content marketing a bad name. It’s disappointingly lacking in details. It’s main purpose is to sell a product, not to inform, and it shows. Let me give you a summary of 90% of its contents:

- Research who will use your product and how it will be used.

- Start with paper and pencil sketches. It’s faster than other methods.

- Turn those sketches into digital mockups. Fill in details.

- Have someone else look at your stuff.

The few other comments on this thread already provide more insight into the UI design process. I wish more content marketers spent more time on the content part.