Assignable Cause 2 : A factor which contributes a sufficient variation, other than that due to chance, in the quality characteristics of a material, product or process, to justify time and money required for its identification
Ilan Kelman (ed.), Vulnerability and Resilience Definitions and References, Version 2, 2007. http://www.islandvulnerability.org/docs/vulnres.pd f, (Vulnr and Resilience - Brit) {524}