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. 2014 Jun 19;2014:568303. doi: 10.1155/2014/568303

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.