Usability for Engaged Users: The Naturalistic Approach to Evaluation
This chapter is intended to give the reader an introduction to naturalistic usability, sometimes called želd usability. The term “naturalistic usability” includes a range of approaches to evaluation that attempt to provide a more holistic and realistic assessment of usability than is possible in a conventional usability laboratory study. It attempts to come as close as possible to measuring usability as people actually experience it by exploring the user’s interaction with technology in the user’s natural context, based on the user’s own goals and materials. These approaches also allow you to study both usability and utility conjointly and to explore both initial usability (e.g., discovery) and continuing task performance in a more balanced way than is usually possible in a laboratory study (Dray and Siegel 2009).