Fault-tolerant systems – a short introduction
The improvement of reliability can be increased by two different approaches, perfectness or tolerance, [11.4]. Perfectness refers to the idea of avoiding faults and failures by means of an improved mechanical or electrical design. This includes the continued technical advancement of all components that increase the operational life. During operation the intactness of the component must be maintained by regular maintenance and replacement of wearing parts. Methods that facilitate fault detection at an early stage allows one to replace the regular maintenance schedule with a maintenance-on-demand scheme.
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