Biomedical Engineering Reference
In-Depth Information
proceeds by eliminating the various elements and constituents
of the system that might have been the cause of the deviation.
Each of the elements and constituents is reviewed in turn
(Figures 2.2 and 2.3).
The disaggregation of a major element, say equipment,
into its constituents is illustrated in Figure 2.3. For example,
what is the ease of operation of this piece of equipment? Was
the equipment maintained (or not)? Was it calibrated? Was
this piece of equipment appropriate to the tasks? Were there
adequate units of equipment?
By a process of elimination, elements and constituents are
considered and eliminated once it is determined that each
could not have been the root cause of the deviation, until
Figure 2.2
All candidates for root cause
Figure 2.3
Disaggregation of a major element
