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The definition of usability is sometimes reduced to "easy to use," but this over-simplifies the problem and provides little guidance for the user interface designer. A more precise definition can be used to understand user requirements, formulate usability goals and decide on the best techniques for usability evaluations. An understanding of the five characteristics of usability - effective, efficient, engaging, error tolerant, easy to learn - helps guide the user-centered design tasks to the goal of usable products.

Revealing personal information helps service providers create connections and initiate conversations with customers. When information is provided on nametags (as Disney does with employees' hometowns) or on websites (as many health organizations and fitness centers do), most consumers react positively.

Hunkering gives the designer a chance to get lost in the reality of their design. Like visiting a vacation spot you've only seen pictures of, the initial impression takes a little getting used to. Then, once you've had a chance to orient yourself, to find the familiar elements you were expecting and place them relative to each other, the vacation spot becomes more comfortable.