The Current Status of Usability Studies of Information Technologies in China: A Systematic Study

Table 5

List of usability concepts.

Usability definition	Mentioning rate of the definitions	Percentage
Definition given in ISO9241-11 “Ergonomic requirements for office work with visual display terminals (VDTs)”	151	36.8%
Definition given by Nielsen in 1993	120	29.3%
Other definitions (definitions in various branch fields by combining with specific study contents in the field)	120	29.3%
Definition given in ISO9126-1:2000 “Software Product Evaluation: Quality Characteristics and Guidelines for their Use-standard”	14	3.4%
Definition given in China national standard GB/T 162602006 “Software engineering products quality”	5	1.2%
Total	410	100%

Note: among the 647 articles, 282 did not provide definite usability definition. Among the articles providing usability definitions, an article may provide more than one definition.