Biomedical Engineering Reference
In-Depth Information
Table 11.2
Alarms Processed during the Handover
of Instructions, Depending on the Instrument Used
a
Alarms processed during the handover of
instructions, depending on the instrument used
b
Group 1
Group 2
Work diary
85%
40%
SUPERVIS
0%
40%
Both
15%
15%
Neither
0%
5%
a
Per group, in per cent of alarms.
b
In per cent of alarms.
mostly on the work diary when handing over instructions (for 85 per cent
of all alarms processed), or alternately, both on the diary and on the alarms
resolved in the alarm manager (for 15 per cent of alarms); (2) when the
worker finishing his shift belonged to group 2, he relied on the diary (for
40 per cent of alarms), on the alarm manager screen (for 40 per cent of all
alarms) or on both these sources (for 15 per cent of all alarms).
Finally, we observed one last strong correlation. The C type schema
appeared mainly in the activity of the supervisors with the greatest exper-
tise. We defined two categories depending on their level of expertise,
based on the cross-examination of two parameters: seniority in the posi-
tion and peer recognition. Five of the six workers belonging to the category
of expert workers were also placed in group 2, and conversely, all the work-
ers belonging to the category of nonexpert workers belonged to group 1.
Instrumentalization
SUPERVIS is a system that can only be modified very little. Possibilities
for configuration and customization provided to the workers are mini-
mal. However, supervisors can request adaptations and alterations to
other workers - the configurers - who are in charge of carrying out the
alterations in SUPERVIS, related to evolutions in the organization of the
company, customer requests, the technology used in the equipment, etc.
These requests are typically dealt with by the configurers themselves,
who integrate them within the tool.
The design process
The supervisors' activity of design in use seems to be mainly geared toward
the scheme component of the instrument (i.e. instrumentation) rather than
toward its artifact component (i.e. instrumentalization). However, the use
of SUPERVIS, which aims mostly to highlight critical alarms, appeared to
