Flirting with the margin and marginal creep.

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Presentation transcript:

Flirting with the margin and marginal creep. Flirting with the margin and marginal creep. The location of the marginal boundary is determined by sociotechnical processes. Over time, excursions of the operating point beyond the marginal boundary (“flirting with the margin”) that are not accompanied by overt accidents may lead to outward creep of the marginal boundary and regular operation of the system in what used to be the marginal region. R Cook, and J Rasmussen Qual Saf Health Care 2005;14:130-134 Copyright © BMJ Publishing Group Ltd and the Health Foundation. All rights reserved.