UX Evaluation with Standardized Questionnaires in Ubiquitous Computing and Ambient Intelligence: A Systematic Literature Review

Table 2

Distribution of studies by source.

Source	Query result	Title and abstract reviewed	Title and abstract included	Full study reviewed	Full study included
ACM	351	348	304	304	234
IEEE Xplore	145	144	132	132	94
Springer link	343	340	250	250	166
Science direct	107	107	71	71	54
Total	946	939	757	757	548
Percentage of total	100.0%	99.3%	80.0%	80.0%	57.9%