What to check about the user's risks about connecting the patient to the alarm system
The usability failure mode |
Recommended protection |
Validation |
Disturbing alarm signals during connectingIf during connecting the patient to the sensors the alarm is on, the user is liable get distracted, and consequently to err. |
User control over the alarm stateThe user should be able to mute the alarm during connection, and to enable it when finished. |
Functional testing:
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Forgetting the alarm OffAfter connecting the patient to a sensor, the user might forget to enable the sound alarm. |
Ensure that the users realize the alarm modeThe system should always check if the patient is connected, and if the patient is connected to at east one sensor, it should notify when the alarm is muted. |
Functional testing:
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Disturbing alarm reminder signals during connectingIf the alarm reminder is on during connecting to the sensors, the users are likely to make mistakes. |
Silent alarm reminderThe alarm reminder should be visual only, and it should be visible from all around the patient. |
Usability testing:
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Missed connectionThe user might forget or fail to connect the patient to a sensor |
Connection overviewThe default interaction screen should be an overview showing the status of all connections |
Usability testing:Check that the users visualize properly the connection state of all sensors. |
Connection failureThe connection to a sensor might fail |
Connection reminderThe system should notify in case of disconnection from a sensor |
Functional testing:
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Disturbing connection remindersThe user might respond to connection reminders as if these are false alarms |
Non-disturbing indicators of disconnected sensorsThe notification about the disconnected sensor should be silent for sensors used for indicating medium-risk alarm conditions and provide non-disturbing sound for high-risk alarm conditions |
Usability testing:
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