Encourage exploratory learning (Undo) | 0 | 4 | 2.23 | 0.178 | 1.179 | 1.389 |
Prevent serious errors. (Undo) | 0 | 4 | 2.30 | 0.154 | 1.025 | 1.050 |
Use standard meanings of words (Language) | 0 | 4 | 1.82 | 0.179 | 1.187 | 1.408 |
Specialized language for specialized group (Language) | 0 | 4 | 2.14 | 0.171 | 1.133 | 1.283 |
User defined aliases (Language) | 0 | 4 | 2.23 | 0.178 | 1.179 | 1.389 |
Users’ perspective (Language) | 0 | 4 | 1.55 | 0.157 | 1.044 | 1.091 |
Users are initiators of actors (Control) | 0 | 4 | 1.77 | 0.159 | 1.054 | 1.110 |
Avoid surprising actions (Control) | 0 | 4 | 1.91 | 0.141 | 0.936 | 0.875 |
Context-sensitive help (Documentation) | 0 | 4 | 2.23 | 0.175 | 1.159 | 1.342 |
Help embedded in contents | 0 | 4 | 2.30 | 0.161 | 1.069 | 1.143 |