Table 1 Usability issues
From: Timeline representation of clinical data: usability and added value for pharmacovigilance
Problem | Source of the problem | Problem frequency | Nielsen scale score | Observations |
|---|---|---|---|---|
Zoom increase/decrease functionality deemed insufficiently accurate by participants | User Interface (UI) | 6/6 (100%) | 3/4 | The Timeline overview does not allow accurate zooming to select the detailed view range |
Absence of prescription data | Data source | 6/6 (100%) | 3/4 | Prescriptions were not digitized in the Intensive Care Unit |
Text highlighting did not work during the search | UI | 1/6 (17%) | 3/4 | Issues with accent detection |
Medication regimens were not displayed | UI | 6/6 (100%) | 3/4 | Data on medication regimens were not available |
Hierarchical tree of biological concepts: navigation problems | Complexity of the terminology in the UI | 3/6 (50%) | 2/4 | The hierarchical tree of laboratory results was too large to allow users to easily find information without filtering |
Repositioning document windows | UI bug | 2/6 (34%) | 2/4 | The window slid under the menu bar |