Robustness is the property of being strong and healthy in constitution. When it is transposed into a system, it refers to the ability of tolerating perturbations that might affect the system’s functional body. In the same line ''robustness'' can be defined as "the ability of a
system
A system is a group of interacting or interrelated elements that act according to a set of rules to form a unified whole. A system, surrounded and influenced by its environment, is described by its boundaries, structure and purpose and express ...
to resist change without adapting its initial stable configuration".
"Robustness in the small" refers to situations wherein perturbations are small in magnitude, which considers that the "small" magnitude hypothesis can be difficult to verify because "small" or "large" depends on the specific problem. Conversely, "Robustness in the large problem" refers to situations wherein no assumptions can be made about the magnitude of perturbations, which can either be small or large.
[C.Alippi: "Robustness Analysis" chapter in ''Intelligence for Embedded Systems.'' Springer, 2014, 283pp, .]
It has been discussed that robustness has two dimensions: resistance and avoidance.
[Durach, C.F. et al. (2015)]
Antecedents and dimensions of supply chain robustness: a systematic literature review
International Journal of Physical Distribution & Logistics Management, Vol. 45, No. 1/2, pp. 118-137
See also
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Fault-tolerant system
Fault tolerance is the property that enables a system to continue operating properly in the event of the failure of one or more faults within some of its components. If its operating quality decreases at all, the decrease is proportional to the ...
and links thereof
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Resilience (disambiguation)
References
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Personality traits