Editor’s note: Since writing this column, Steven has done additional user research and has updated his design guidelines for mobile phones accordingly. Read his latest column on this topic: “Design for Fingers, Touch, and People, Part 1.”
As UX professionals, we all pay a lot of attention to users’ needs. When designing for mobile devices, we’re aware that there are some additional things that we must consider—such as how the context in which users employ their devices changes their interactions or usage patterns.  However, some time ago, I noticed a gap in our understanding: How do people actually carry and hold their mobile devices? These devices are not like computers that sit on people’s tables or desks. Instead, people can use mobile devices when they’re standing, walking, riding a bus, or doing just about anything. Users have to hold a device in a way that lets them view its screen, while providing input.
In the past year or so, there have been many discussions about how users hold their mobile devices—most notably Josh Clark’s.  But I suspect that some of what we’ve been reading may not be on track. First, we see a lot of assumptions—for example, that all people hold mobile devices with one hand because they’re the right size for that—well, at least the iPhone is.  Many of these discussions have assumed that people are all the same and do not adapt to different situations, which is not my experience in any area involving real people—much less with the unexpected ways in which people use mobile devices. Read More
Designers have now been building mobile forms for a decade. But, as technology continues to go through metamorphoses and our understanding of users’ needs becomes more refined, good mobile form design is constantly evolving. In this article, I’ll provide eight best practices for mobile form design circa 2017.
Mobile form design presents specific challenges that have, historically, made it difficult for user-interface designers to keep general design best practices top of mind. Challenging factors that pose potential obstacles to creating usable mobile forms include the following:
the constrained screen real estate on a mobile device
Digital products are about content. Even if you think they’re all about interactivity, controls are pointless if users don’t understand their purpose and cannot read about what they do. The most important thing you can do to make a Web site or app usable is to make sure everyone can read its text, on every device, under every condition.
Units and Conversions
First, let’s define some terminology. People often use the term font incorrectly these days. Technically, in the modern world, a font is a digital file containing a particular typeface. In this column, I’ll be using the term type when referring to the characters that make up printed or displayed text—including the content, the font or typeface, and its size and color. Read More