Age-related differences in the initial usability of mobile device icons

Mobile devices offer much potential to support older adults (age 65þ). However, older adults have been relatively slow to adopt mobile devices. Although much ongoing HCI research has examined usability problems to address this issue, little work has looked at whether existing graphical icons are harder to use for this population compared with younger adults. We conducted a qualitative exploratory study and a follow-up experimental study to determine which icon characteristics help initial icon usability for older adults.We found that our older participants did havemore problems using existing mobile device icons, but that particular icon characteristics – semantically close meaning (i.e. natural, close link between depicted objects and associated function), familiar, labelled and concrete (i.e. those depicting realworldobjects) – improved iconusability for them.Wediscusshow thesefindings canhelp icondesigners to createmobile device icons that are more suited to the abilities and technology experience of older adults.