Conclusions: From an initial set of 2703 papers, a total of 206 research papers were selected for the mapping
study. The results obtained allowed us to reach conclusions concerning the state-of-the-art of UEMs
for evaluating Web applications. This allowed us to identify several research gaps, which subsequently
provided us with a framework in which new research activities can be more appropriately positioned,
and from which useful information for novice usability practitioners can be extracted.