Review Article
A Systematic Review of Modifications and Validation Methods for the Extension of the Keystroke-Level Model
Table 12
Summary of high-quality studies based on this review that can guide designers and developers to the most appropriate KLM extensions.
| | Study | Setup | Domain | Extension | Validation | Quality score |
| | PS3 | Traditional | Spreadsheet | Experiment | Experiment | 10 | | PS8-9 | Specialized | GIS | Observation, experiment | Experiment | 8 | | PS10 | Traditional | AAC | Experiment | Experiment | 9 | | PS13 | Traditional IVIS | IVIS | Experiment | Experiment | 8.5 | | PS14 | Touch-based IVIS | IVIS | Experiment | Experiment | 10 | | PS24 | Mobile | Text entry | Literature, experiment | Experiment | 8.5 | | PS30 | Key-based mobile | Mobile | Observation, experiment | Experiment | 8.5 | | PS34 | Key-based mobile | Voice text entry | Experiment | Experiment | 9 | | PS43 | Traditional IVIS | IVIS | Observation, experiment | Experiment | 8 | | PS46 | Key-based mobile | Mobile | Observation, experiment | Experiment | 9.5 | | PS55 | Touch-based mobile | Custom | Experiment | Experiment | 8 | | PS56 | Touch-based mobile | Games | Experiment | Experiment | 10 | | PS68 | NUI | Custom | Literature, observation, experiment | Experiment | 8.5 |
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