Designing Wearable Performance Support: Insights from the Early Literature    

According to Gery (1991), an electronic performance support system (EPSS) is an electronic environment available to and easily accessible by employees that is structured to provide online access to all information to permit them to do their jobs with minimal intervention by others. Why do we assume that this support must be provided on a computer? If effective performance support must be 'available' and 'easily accessible,' how can designers provide support to people whose jobs require mobility? Such jobs include (but certainly are not limited to) supervising a manufacturing operation, inspecting foods, and repairing equipment. A designer for any EPSS being developed to support jobs such as these would have to take the employees' mobility into account.

Gobert, Danielle. Technical Communication Online (2002). Design>Content Management>Wireless Web