Beyond Quality Products That Tolerate the Variability, Abuse, and Unforeseen Stress of Real-World Use
Most reliability engineering literature and practice focus on two of the three failure domains a product encounters across its service life: the early-life domain, governed by quality control, and the wear-out domain, governed by reliability analysis. The third domain, the long flat middle of the bathtub curve, where the product is supposed to operate routinely for the bulk of its useful life, is governed by neither. It is governed by robustness: the engineered capacity of the product to absorb the variability, abuse, and unforeseen stress that the real-world operating environment will impose on it, beyond what the laboratory specification captures. This white paper sets out the engineering disciplines that produce robustness, the analytical frameworks that quantify it, and the business case that justifies the investment.