Table 5.
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.